Phosgene recovery device for light-containing tail gas

The invention discloses a phosgene recovery device for light-containing tail gas, and relates to the technical field of recovery devices.The phosgene recovery device for the light-containing tail gas comprises a base, a collecting box is fixedly installed at the top of the base, and a connecting pipe is fixedly installed in the collecting box; and the end, away from the collecting box, of the connecting pipe is fixedly provided with a treatment box communicating with the connecting pipe, the end, extending into the collecting box, of the connecting pipe is rotationally connected with a connecting box, and the bottom of the connecting box is fixedly provided with an exhaust pipe. And impurities in phosgene are conveniently filtered and pretreated, it is prevented that too many impurities are accumulated in the collecting box, later treatment is not convenient, phosgene is conveniently collected and treated in the later period, the using convenience of the device is improved, the impurities in phosgene are redu