The utility model belongs to the technical field of
tail gas collection, and relates to a
tail gas collection device which comprises a condensation cylinder, a partition plate is fixedly connected to the middle in the condensation cylinder, a plurality of through holes are evenly formed in the partition plate, a second one-way valve is fixedly installed in each through hole, and a rotating shaft is rotationally connected to the interior of the condensation cylinder. The rotating shaft rotationally penetrates through the partition plate, a condensation
assembly is arranged at the position, located at the bottom of the partition plate, of the rotating shaft, reciprocating threads are formed in the position, located at the top of the partition plate, of the outer surface of the rotating shaft, and a
piston sleeves the reciprocating threads through a nut and is vertically and slidably connected into the condensation cylinder; an air inlet
pipe fixedly penetrates through the top of the partition plate on the side face of the condensation cylinder and is provided with a first one-way valve. The device has the advantages that
tail gas in the first cavity enters the second cavity through the multiple through holes, so that the tail gas is cooled when passing through the device, meanwhile, the speed of the tail gas entering the second cavity is reduced, and the
cooling speed of the condensation
pipe on the tail gas is increased.