Light-driven sequencing batch biological purification tank based on distributed rural sewage treatment

The invention relates to a light-driven sequencing batch biological purification tank based on distributed rural sewage treatment, which comprises a tank body and a photovoltaic-driven aeration device, and is characterized in that the tank body is sequentially provided with a water inlet adjusting tank, a first-stage purification area, a first diversion trench, a second-stage purification area, a second diversion trench, a third-stage purification area and a clean water tank along the transverse direction; a water distribution pipe is arranged at the bottom of the primary purification area, and the photovoltaic driving aeration device comprises a solar cell panel, a photovoltaic controller, a storage battery, an aeration controller and an aeration pump. The problems that water inflow cannot be effectively controlled, water quality cannot be effectively guaranteed, intermittent operation cannot be achieved, the contact coagulation, interception, adsorption and precipitation effects of a filter material of a fi