The FDNY’s former pension boss — who lost his job for drunkenly crashing his government Toyota in Midtown last month — was nearly four times over the legal limit, newly filed court papers charge.

Stephen Cassidy, 62, was hit with a new charge of aggravated intoxicated driving Wednesday in Manhattan court after toxicology results showed he had a blood-alcohol level of 0.3 percent, according to prosecutors. The legal limit is 0.08.

But it wasn’t all bad news for the disgraced ex-official. The cocaine possession rap against him was dismissed after tests revealed that the suspicious white powder found on him after the May 8 crash wasn’t a drug.

A glum-looking Cassidy didn’t comment as he left the courthouse. His lawyer said, “They’ve changed the theory of their prosecution, and I need some time to examine it.”

Cassidy, the longtime president of the Uniformed Firefighters Association, lost control of his Prius near West 30th Street and crashed into a dumpster.

In 2016, he became the executive director of the city’s Fire Pension Fund, a newly created position, which he was promptly relieved of after the accident.