Pre-pumping non-pressure self-cleaning filtering device integrating diving and floating characteristics

The utility model discloses a front-pump non-pressure self-cleaning filtering device integrating diving and floating characteristics, which is characterized in that a water inlet pipe containing a pollution discharge hollow shaft is connected to the left side outside a filtering water purification chamber, a damping plate and a floating wheel are mounted on the pollution discharge hollow shaft, and a flushing water outlet is connected with an inlet of a submersible pump through a pipeline; an outlet pipe of the self-cleaning filter device is connected with an inlet of the water inlet pipe, the sewage discharge hollow shaft is communicated with the water inlet pipe, the cylindrical filter screen is composed of two or more layers of perforated meshes, a framework of each perforated mesh is a sintered stainless steel mesh, and the self-cleaning filter device is mounted on a pontoon composed of buoys. According to the structure of the pontoon, a cuboid frame formed by profile steel is arranged in the middle of a