The present invention provides a solenoid switch, which comprising: a valve body, a solenoid valve, a controller and a nozzle; the valve body consists of a valve chamber and a gas inlet/outlet connected with the valve chamber; a first pipe orifice is arranged on the location of the gas outlet connected with the valve chamber; the solenoid valve is arranged on the valve chamber correspondingly with the first pipe orifice, and used to control if the gas outlet is connected with the valve chamber; the controller is extended into the gas inlet, so as to control if gas flows from the gas inlet into the valve chamber; the nozzle is set at one end of the gas outlet.