Explosion-proof wave-absorbing drainage well convenient to overhaul

The utility model discloses an anti-explosion wave-absorbing drainage well convenient to overhaul, which relates to the technical field of drainage of protective engineering and comprises a well body, a wave-absorbing mechanism, a sealing pressure-bearing mechanism and a pressure relief mechanism. A partition part is arranged in the well body to divide the interior of the well body into an overhaul space and a buffer space, and a water inlet pipe and a water outlet pipe are arranged outside the well body; the wave absorbing mechanism comprises a gravel cage and gravel filled in the gravel cage; the sealing pressure-bearing mechanism comprises a sealing pressure-bearing cover plate and a sealing piece; the sealing pressure-bearing cover plate is detachably connected with the separation part through the sealing piece and is arranged on the separation part; the pressure relief mechanism comprises a first pressure relief hole and a second pressure relief hole, and a pressure relief pipe is arranged outside the se