Buried integrated sewage treatment device

The utility model relates to the technical field of sewage treatment, in particular to a buried integrated sewage treatment device which comprises a shell, an anaerobic reaction area and an aerobic reaction area are respectively arranged in the shell, and one side of the shell is fixedly connected with a containing box. The utility model has the advantages that when sewage is pumped and drained in the anaerobic reaction area and the aerobic reaction area, the two buoys are subjected to the buoyancy of the sewage, so that the bottom ends of the two steel wire pipes are conveniently immersed into the surface layer position in the sewage and can move up and down along with the water level of the sewage, thereby preventing the sludge from influencing the pumping and drainage of the sewage; by arranging the containing box and the filter screen, large-size garbage contained in sewage can be conveniently filtered, meanwhile, the middle of the containing box is communicated with the anaerobic reaction area, and sludg