The invention discloses an industrial wastewater combined utilization treatment device, and belongs to the technical field of wastewater treatment. The industrial wastewater combined utilization treatment device includes a sedimentation tank, the left end of the sedimentation tank is connected to a water inlet pipe and a sludge discharge pipe, the water inlet pipe is positioned above the sludge discharge pipe, the right end of the sedimentation tank is connected to a water outlet pipe, a middle partition wall matched with the sedimentation tank is fixedly connected into the sedimentation tank,the left end of the middle partition wall is slidably connected to a floating plate platform, a dry sewage pump is mounted at the upper end of the floating plate platform, the left end of the dry sewage pump is connected to a water pumping pipe, the lower end of the water pumping pipe extends to the lower side of the floating plate platform, and the upper end of the dry sewage pump is connected to a drain pipe. According to the invention, disturbance caused by the drainage process to sludge at the bottom of the sedimentation tank can be effectively reduced in the drainage process of the sedimentation tank, meanwhile, float sludge in a water body can be filtered, so that the water quality of the recycled water body is effectively guaranteed, and in addition, workers can conveniently cleanand recycle the filtered float sludge.