He’s the other Brooklyn Ripper.

Brooklyn Supreme Court Justice Vincent Del Giudice routinely sneaks rips from a vape pen as he presides over cases — including the ongoing murder trial of accused “Brooklyn Ripper” Daniel St. Hubert, The Post has learned.

“Everybody knows about it, but nobody says anything,” said one court worker.

The Post observed Del Giudice casually drawing from the e-cig all this week while St. Hubert stood trial for allegedly eviscerating 6-year-old Prince Joshua “PJ” Avitto and severely injuring 7-year-old Mikayla Capers in an East New York housing project in 2014.

From the bench, Del Giudice would slyly hold his hands up to his face, as though stroking his goatee in contemplation — but a blue light peeking out from his closed fist was a dead giveaway he was secretly using a vaporizer, photos show.

The justice’s courtroom jonesing has raised eyebrows among lawyers — both because it seems unprofessional and because it is in violation of a 2017 law barring the use of vaporizers indoors and in any public place where smoking is barred.

“I wouldn’t ever think it’s appropriate to even do that in a public building, much less on the bench,” said one attorney who has appeared before Del Giudice for years but was not involved in the Ripper case.

Another attorney quipped: “The only reason I never became a judge is because I can’t smoke my cigars on the bench.”

Smoking or vaping inside court rooms is illegal under the state’s Clean Indoor Air Act, and breaking the law is punishable by a fine up to $2,000 dollars, according to the state Health Department.

Del Giudice was sitting at his bench after court Wednesday when a Post reporter approached.

When the judge, e-cig dangling from his lips, asked what the reporter wanted to ask about, he gestured to the device and said, “I was hoping to speak to you about that precisely.”

The jurist of 38 years quickly pocketed the vaporizer.

“No comment,” he repeatedly said.

The Office of Court Administration did not immediately respond to a request for comment.