Hydrogen phosphide tail gas treatment device

The utility model relates to the technical field of tail-period treatment, in particular to a hydrogen phosphide tail gas treatment device. The device comprises a gas inlet pipe, a spherical anti-suck-back device, a feeding pipe, a tail gas treatment bottle, an indication bottle and a discharging pipe, the interior of the spherical anti-suck-back device is connected with the interior of the tail gas treatment bottle through a tail gas absorption pipe, and the interior of the tail gas treatment bottle is connected with the interior of the indication bottle through a connecting pipe. Reaction liquid is filled in the tail gas treatment bottle and the indication bottle. The tail gas treatment device has the beneficial effects that tail gas can be repeatedly treated in a multi-stage manner, the tail gas is treated for multiple times by arranging a plurality of tail gas treatment bottles, and the gas which is not reacted in time enters the treatment bottles again to be treated by arranging a pressure valve, so that