Arsenic-containing wastewater treatment device

The utility model relates to the technical field of sewage treatment, in particular to an arsenic-containing wastewater treatment device. Comprising a wastewater inlet pipeline, an acidification area, an oxidation area, a precipitation area, a clean water tank, a water pump and a filtering area, the upper portion of one side of the acidification area is fixedly connected with the wastewater inlet pipeline, the other side of the acidification area is fixedly connected with the oxidation area, the acidification area is communicated with the oxidation area, and the side, away from the acidification area, of the oxidation area is fixedly connected with the precipitation area; the side, away from the oxidation area, of the precipitation area is fixedly connected with the clean water tank, the bottom of the side, away from the precipitation area, of the clean water tank is communicated with the water pump through a pipeline, and the water pump is communicated with the filtering area through a pipeline. The arsenic-