Pit foundation structure facilitating drainage

The utility model discloses a pit foundation structure convenient to drain, which aims to solve the problems that in the prior art, too much water is accumulated in a pit foundation, and the accumulated water cannot be utilized, the pit foundation comprises a pit body, a settling pond is excavated on the right side of the pit body, the pit body is connected with the settling pond through a diversion canal, and a water inlet pipe is arranged at the top of the diversion canal. A filter cartridge is arranged in the water inlet pipe; and a filter element is arranged on the diversion canal at the positions of the pit body and the sedimentation tank. According to the pit foundation, through the design of the diversion canal and the settling pond, accumulated water in the pit foundation can be guided into the settling pond through the diversion canal, so that the accumulated water in the pit foundation is discharged, and the problems that the accumulated water in the pit foundation is not easy to discharge and the a