Desilting device for dewatering well close to subway deep foundation pit

The utility model relates to the technical field of dewatering well dredging, and discloses a dewatering well dredging device close to a subway deep foundation pit, which comprises a second hollow pipe, threaded walls are arranged at the upper end and the lower end of the outer side of the second hollow pipe, and the top end of the second hollow pipe is in threaded connection with the bottom end of the inner side of a first hollow pipe. A plurality of open grooves are formed in the middles of the left sides and the right sides of the second hollow pipe and the first hollow pipe at equal intervals, and a plurality of connecting rods are fixedly connected to the left sides and the right sides of the second hollow pipe and the first hollow pipe at equal intervals. According to the utility model, the bottom end of a hose or corrugated pipe structure is sequentially inserted into the first hollow pipe and the second hollow pipe, the hose or corrugated pipe is tied on the first hollow pipe and the second hollow pip