Coal bed gas wastewater treatment device

The utility model discloses a coal bed gas wastewater treatment device which comprises a treatment box with an opening in the top, a cover plate is fixed to the top of the treatment box through threads, a water inlet pipe is communicated with and fixed to the left side of the treatment box, a baffle is fixedly installed at the bottom of the cover plate, the left side of the baffle is an arc-shapedface, and a gas outlet pipe is arranged on the left side of the baffle. The top end of the air outlet pipe extends to the position above the cover plate, the cover plate is fixedly arranged on the air outlet pipe in a sleeving mode, a one-way valve is fixedly arranged in the air outlet pipe in a sleeving mode, a filter box with an opening in the right side is fixedly installed on the inner wall of the bottom of the treatment box, and the right side of the filter box extends out of the treatment box. The device is reasonable in design, coal bed gas, pulverized coal particles and mud in waste water can be conveniently