Why does my car overheat and leak antifreeze when the air conditioner is turned on

Its did it to me twice but only when the air conditioners on but it would only blow hot air I let it cool down for30in put more antifreeze drove it about 20 miles didnt overheat tell I got home then antifreeze leaked out plz help me

Sounds to me you your A.C fan may not be coming on supplying the extra air flow it needs to get proper air it needs when the A.C is on. If fans are working try cleaning your A.C condenser coil and radiator with a garden hose and nozzle or better yet a pressure washer your radiator and A.C coil my be clogged with dirt and bugs causing little to no air flow across the radiator and A.C coil fins

Thanks ill,have my husband check we had to tap on the coil for the fan to come on,so that makes sence

If you had to tap on fan and it started working you need a new fan.

If its leaking you might have a hole in your radiator