Printing ink sewage treatment device

The utility model discloses a printing ink sewage treatment device, and relates to the technical field of printing ink treatment, two side walls of a filter box are provided with mounting grooves, one mounting groove is internally and rotatably connected with a screw rod, the surface of the screw rod is provided with a threaded seat, one side of the threaded seat is provided with a push plate, one side of the filter box is provided with a first motor connected with the screw rod, and the other side of the filter box is provided with a second motor connected with the screw rod. The first motor drives the screw rod to rotate and drives the threaded seat to move, so that the movable threaded seat drives the push plate to move, and the movable push plate pushes out precipitates left after filtration above the high-fiber filter layer from the slag outlet, so that the precipitates are cleaned, and the situation that the filtering effect of the high-fiber filter layer is affected due to excessive accumulation of the