Sewage treatment system

The utility model discloses a sewage treatment system. The sewage treatment system in the embodiment of the utility model comprises a corridor chute and a conveying device, the corridor chute comprises a chute input end and a chute output end, the chute input end is higher than the chute output end, and the chute input end is used for being connected with a corridor to receive dirt. The conveying device comprises a conveying belt input end and a conveying output end, the conveying input end is connected with the chute output end to be used for receiving the dirt, and the conveying device is used for conveying the dirt to the dirt collecting device through the conveying output end. According to the sewage treatment system, the inside and the outside of the corridor can be effectively cut off through the corridor chute and the conveying device, the problem of cross contamination of sewage in the treatment process can be avoided, the height difference is formed between the corridor chute and the conveying device