Chemical fire-fighting pool water quality purification device

The utility model discloses a chemical fire pool water quality purification device which comprises a fire pool body and a purification part, the purification part is arranged in the fire pool body, filter screens are symmetrically arranged on two side walls of the purification part, a filter element is arranged on the inner wall of the purification part through a purification cavity, the filter element comprises PP cotton and activated carbon, and the PP cotton is arranged in the purification cavity. The activated carbon is positioned in the PP cotton; a threaded hole is formed in the middle of the bottom wall of the purification part, the inner wall of the threaded hole is in horizontal threaded connection with a reciprocating lead screw, the outer wall of the end of the reciprocating lead screw is fixedly sleeved with a first transmission wheel, the first transmission wheel is in transmission connection with a second transmission wheel through a transmission belt, and the inner wall of the second transmissi