Nitration waste acid recovery treatment device

The utility model relates to the technical field of nitration waste acid recovery treatment, in particular to a nitration waste acid recovery treatment device which comprises an evaporation tower, a filter is arranged on one side of the evaporation tower, the evaporation tower and the filter are in through connection through a first connecting guide pipe, and a condenser is arranged on one side, away from the filter, of the evaporation tower. Meanwhile, the condenser and the evaporation tower are in through connection through a second connecting guide pipe, a liquid collecting tank is installed at the bottom of the condenser in a through mode, a circulating pump is fixedly installed on one side of the bottom of the liquid collecting tank, and meanwhile the circulating pump is in through connection with the liquid collecting tank and the first connecting guide pipe through a first backflow pipe and a second backflow pipe respectively; multiple concentration can be realized through combined operation of the eva