Purification treatment device for finish paint spraying room

The utility model discloses a purification treatment device for a finish paint spraying room, which comprises a purification treatment system arranged at the bottom of the finish paint spraying room, and the purification treatment system comprises at least one containing cavity used for purifying paint mist falling from the ground of the finish paint spraying room so that the paint mist can fall into the containing cavity conveniently; each containing cavity is internally provided with at least one set of paint mist treatment structure, each set of paint mist treatment structure is provided with at least one water through hole, an exhaust pipe, a water storage tank and a flow guide structure, so that water is stored in the water storage tank through the water through holes, and meanwhile paint mist is downwards pumped into the containing cavities through the exhaust pipe; when the water storage tank is full of water, the water drops can drop downwards along the flow guide structure to make contact with paint