A Victorian man has survived being trapped under more than three tonnes of scrap metal, after he was discovered and freed from a bin destined for the furnace.

Geelong scrap metal merchant Wayne Gill found the man trapped with just his legs free about 8.30am today.

Mr Gill said he was baffled by the discovery.

Geelong scrap metal merchant Wayne Gill made the discovery. (9NEWS)

"We don't know how he's crawled under the scrap - the scrap was already in the bin to go to the furnaces," he said.

"He doesn't work here, he was just lost and drunk and had an argument with his wife and ended up here."

Emergency services were called in to free the 61-year-old man, who was from Warrnambool, a town 200km from Geelong.

Firefighters and SES workers freed the man. (9NEWS)

Firefighters and SES crews spent about half an hour freeing him, and he was then taken to Geelong Hospital with pelvic injuries. He remains in hospital in a stable condition.

Victoria Police are investigating the circumstances of the accident, but are not treating it as suspicious.