Rainproof device of distributed sewage treatment tank suitable for rural areas

The utility model discloses a rain-proof device of a distributed sewage treatment tank suitable for rural areas. The rain-proof device comprises a rain-proof box, a telescopic rod and a fixed table, the fixed table is fixed on the ground; the top of the telescopic rod is fixedly connected with the rainproof box, and the bottom of the telescopic rod is fixedly connected with the fixing table. The rainproof box is provided with a pipe hole and a waterproof pipe, the pipe hole is used for allowing an air supply pipe of the air pump to penetrate out, the waterproof pipe comprises a U-shaped pipe and an inverted-U-shaped pipe, one end of the U-shaped pipe is communicated with the inverted-U-shaped pipe, the other end of the U-shaped pipe is communicated with an inner cavity of the rainproof box, and a drainage hole is formed in the bottom of the U-shaped pipe. A plurality of inserting grooves are formed in the side face of the rainproof box, and the fixing table is provided with a pluralityof inserting rods insert