Nanometer material photoelectrocatalysis sewage treatment device

The sewage treater comprises a box body, the box body is divided into a filter box and a reaction box which are arranged up and down, a discharge port is formed in the side wall of the filter box, a mounting plate is rotatably connected to the discharge port, a residue filtering net is mounted in the mounting plate, and a filter screen is mounted in the filter screen. And a pull rope is fixedly connected to the other side wall of the mounting plate, one end of the pull rope penetrates through the side wall of the box body and is provided with a rubber plug embedded in the side wall of the box body, and the height of the rubber plug is larger than that of the discharging opening. Through interaction of structures such as the stirring sleeve, the residue filtering net, the spring, the round bearing, the discharging opening, the mounting plate, the limiting groove and the pull rope, filter residues on the residue filtering net can be cleaned more conveniently and easily, and the follow-up catalytic effect is pre