Drainage device for basement exterior wall

The utility model relates to a drainage device for a basement outer wall, which comprises a steel pipe with a water stop ring and a water filtering structure, and is characterized in that one end of the steel pipe with the water stop ring obliquely penetrates through the basement outer wall, the water stop ring is positioned in a foundation beam of the basement outer wall, an outer port of the steel pipe is higher than an indoor port, and an indoor port of the steel pipe is arranged in a water collecting well. A water filtering structure is mounted at an outer port of the steel pipe. According to the utility model, the concept of active drainage is adopted, and accumulated water on the outer side of the basement outer wall with high permeation risk can be drained into the water collecting well close to the outer wall for centralized drainage through active drainage in the construction process, so that the leakage risk caused by long-time accumulated water and overhigh water pressure of the basement outer wall