Distributed unpowered rural sewage treatment equipment

The utility model discloses distributed unpowered rural sewage treatment equipment, which consists of two tank bodies, and comprises an oil separation and sand removal regulating tank box-shaped main body, a sewage percolation tank box-shaped main body, a sand separation plate, a combined filler, a water inlet/outlet, an air inlet/outlet, an alarm floating rod, an access cover plate and a water distributor. Sewage enters the oil-separating and sand-removing adjusting tank body from the water inlet, oil in the sewage floats on the surface of the sewage due to low density, gravels fall to the bottom of the tank through precipitation, when the quantity of the sewage is higher than the height of the sand-separating plate, the sewage enters the water outlet area of the oil-separating and sand-removing adjusting tank from the precipitation area, and the gravels are blocked in the sand-settling area by the sand-separating plate. The decentralized rural domestic sewage integrated treatment equipment is simple and com