Air sterilizer

The invention relates to an air sterilizer. The device comprises a first shell, the first shell comprises a first ventilation cavity, a first air inlet, an air outlet and a first connector, and an air draft device and a disinfection device are arranged in the first ventilation cavity; the second shell comprises a second ventilation cavity, a second air inlet, a second connecting port and a rotating part, and the second ventilation cavity communicates with the second air inlet and the second connecting port; the rotating device is arranged on the first shell, and the rotating device is in transmission connection with the rotating part; under the action of the rotating device, the second shell can rotate relative to the first shell through the rotating part so as to change the orientation angle of the front face of the second shell. Compared with the prior art, the air disinfector can adjust the angle of the air inlet according to different environment conditions, and then the air draft disinfection area is adj