Tail gas treatment device

The utility model discloses a tail gas treatment device which comprises a collecting tank, a gas inlet, a gas outlet and a feed opening, the side wall of the collecting tank is communicated and fixedly connected with the gas inlet, the gas inlet is provided with a first one-way valve, the gas outlet is formed in the collecting tank, a first control valve is arranged in the gas outlet, and the feed opening is formed in the collecting tank. According to the tail gas treatment device, through the arrangement of the gas treatment mechanism, after tail gas passing through phosphorus pentasulfide enters the treatment bin, poisonous gas such as phosphorus pentasulfide, sulfur dioxide, phosphorus-sulfur compounds and yellow phosphorus steam can be better purified under the spraying action of an alkaline solution; the phosphorus pentasulfide tail gas treatment device has the advantages that the alkaline solution can be repeatedly utilized to treat the phosphorus pentasulfide tail gas, the benefit is maximized, and the