Ultra-deep anti-falling water drop inspection well

The utility model discloses an ultra-deep anti-drop water drop inspection well which comprises a vertical shaft body, the interior of the vertical shaft body is divided into different layers of well chambers through partition plates, the uppermost layer of well chamber is communicated with a water inlet pipe, the lowermost layer of well chamber is communicated with a water outlet pipe, and a water retaining ridge is arranged on the upper surface of each layer of partition plate and divides the layer of well chamber into an energy dissipation area and an overhaul area. Stepping steps are arranged on the two sides of each water retaining ridge. A vertical sewer pipe used for communicating the upper-layer well chamber and the lower-layer well chamber is fixed to each partition plate, and the vertical sewer pipes of the upper-layer well chamber and the lower-layer well chamber are located in the energy dissipation area and arranged in a staggered mode; manholes located in a maintenance area are formed in a top pl