High-temperature and high-pressure desorption electrolysis tail gas treatment device

The utility model belongs to the technical field of gold smelting, and particularly relates to a high-temperature high-pressure desorption electrolysis tail gas treatment device which comprises a tail gas pipe, a condenser is arranged at an outlet of the tail gas pipe through a pipeline, an outlet pipeline of the condenser extends below the liquid level of a solution tank, and an upper end cover of the solution tank is connected with a heat exchanger through a pipeline. An outlet of the heat exchanger is connected with a bottom inlet of the spray tower through a pipeline, an exhaust fan is arranged on an outlet flue gas pipeline at the upper end of the spray tower, and an outlet of the exhaust fan is a discharge chimney; a saturated sodium chloride aqueous solution is arranged at the bottom of the spray tower, a filler layer is arranged in the spray tower above an inlet at the bottom of the spray tower, a spray header is arranged above the filler layer, and the outer side of the saturated sodium chloride aque