Cops are hunting for this man in a vicious assault on an off-duty NYPD detective in a Midtown subway station.

Officer Adrian Delfaus, 29, suffered a serious head injury when the man allegedly clobbered him during a dispute involving a panhandler in the 6-train station at 23rd Street at around 6:30 p.m. Saturday.

Delfaus was in a medically induced coma before doctors upgraded his condition to stable Sunday afternoon.

His mother said he was out of the coma and could be released from Bellevue Hospital as early as Monday.

“He’s doing well,” she said after visiting him Sunday. “We just hope they catch the guy.”

The NYPD released a sketch of the attacker, who they say is in his 40s, about 5-foot-9 and 200 pounds. He was wearing a white T-shirt, cops said.

Delfaus and his cousin were standing on the southbound platform when the cousin began “bothering” a beggar, law-enforcement sources said.

The attacker then stepped in, shouting, “That’s not f- -king right!” at the cousin and slugging Delfaus before fleeing with two women, sources said.

The vagrant, Delano Parson, 54, told The Post that Delfaus insulted him “and tried to take my prescription glasses.”

A six-year NYPD veteran, Delfaus was promoted to detective in August and assigned to the Brooklyn North Narcotics Division. But he was placed on modified duty and reassigned to Queens after getting charged with DWI in December, sources said.

The NYPD declined to comment on Parson’s claim against Delfaus.