double face!

A prominent Columbia architecture professor punched a female university employee in the face at a Harlem bar during a heated argument about race relations, cops said yesterday.

Police busted Lionel McIntyre, 59, for assault yesterday after his bruised victim, Camille Davis, filed charges.

McIntyre and Davis, who works as a production manager in the school's theater department, are both regulars at Toast, a popular university bar on Broadway and 125th Street, sources said.

The professor, who is black, had been engaged in a fiery discussion about "white privilege" with Davis, who is white, and another male regular, who is also white, Friday night at 10:30 when fists started flying, patrons said. (via)