Tail gas treatment device for producing polycarbonate

The utility model discloses a tail gas treatment device for producing polycarbonate. The tail gas treatment device comprises a first condenser, a second condenser, a first fan, a second fan, an incinerator and a tail gas inlet, cooling water outlets are formed above the first condenser and the second condenser, and low-pressure steam is arranged on one sides of the cooling water outlets; a cooling water inlet and a waste liquid recovery port are formed below the first condenser and the second condenser; and low-pressure steam condensate is arranged on one side of the cooling water inlet. The improved device is adopted for tail gas treatment, so that tail gas is completely condensed before entering the fan and is discharged into the waste liquid collecting tank for retreatment, and the problem that impurities in the tail gas enter a pipeline to block the pipeline and affect production is solved; and meanwhile, liquid drops are prevented from entering the fan to cause damage, the effect of protecting the fan is