Exhaust sterilization device of negative pressure suction system

The utility model discloses an exhaust and sterilization device of a negative pressure suction system, which comprises a disinfection and sterilization treatment box, the right side surface of the disinfection and sterilization treatment box is fixedly communicated with a group of exhaust pipe connectors, and two hot water electric heating plates are fixedly arranged on the inner bottom wall of the disinfection and sterilization treatment box. According to the device, a hot water electric heating plate is arranged, a water source in the disinfection and sterilization treatment box can be conveniently heated by utilizing the hot water electric heating plate, an exhaust pipe can be conveniently connected by utilizing an exhaust pipe connector, a temperature sensing controller and an electromagnetic pressure release valve are combined, and the temperature sensing controller is matched with the electromagnetic pressure release valve, so that the sterilization effect is improved. The air pressure in the disinfecti