A Brooklyn man who beat his mother-in-law’s cat with an umbrella, causing a collapsed lung that led to the cat being euthanized, will be caged for six months on animal cruelty charges, a judge said yesterday.

Lordtyshon Garrett was convicted in March of the October 2009 clubbing of the cat, Madea, in Bushwick.

Prosecutors asked for a two-year sentence, but Brooklyn Supreme Court Justice Dineen Riviezzo, noting that Garrett never intended to kill the cat, showed him some mercy. Still, she said, given “the seriousness of this crime and [Garrett’s] prior criminal history … some jail time is appropriate.”

She also gave him five years’ probation.