Aerosol generator

The utility model discloses an aerosol generator. A liquid level meter, a rotor flow meter, a hand-operated switch valve, a pressure regulating valve and a pressure gauge are arranged on a panel of ametal box body; an air source inlet and a generator outlet are formed in the side of the metal box body; a nozzle assembly is arranged in the metal box body; the nozzle assembly comprises a nozzle valve plate and a plurality of nozzles on the nozzle valve plate; the nozzle is connected with an air source inlet through a valve plate air source channel in the nozzle valve plate via a hand-operated switch valve; an air inlet cavity is formed in a nozzle shell of the nozzle. An outlet of the air inlet cavity is connected with a mixing cavity; the mixing cavity is connected with a liquid inlet cavity which is vertically arranged below the mixing cavity; a collision ball is arranged at the opening, away from the air inlet cavity, of the mixing cavity; and a gap is formed between the collision ball and the opening of the