He won’t be smiling for long.

Former state Senate Majority Leader Pedro Espada was beaming outside court yesterday as contentious jury deliberations in his Brooklyn federal corruption trial plodded along.

The disgraced pol took a leisurely stroll with his entourage and was able to enjoy a long lunch.

But his newly buoyed spirits will likely be short lived.

Prosecutors have vowed that if there is a mistrial, they’d retry Espada on charges that he used his Bronx health-care nonprofit as a personal piggy bank, sources said.

For the last two months, Brooklyn jurors have heard that Espada allegedly misspent hundreds of thousands of dollars from the nonprofit on lavish family vacations, home improvements and high-end personal meals.