Assembly type functional well for water supply and drainage engineering

The utility model discloses an assembly type functional well for water supply and drainage engineering. Assembly well comprising an assembly well body, wherein a mounting base is arranged in the assembly well body; the upper end of the mounting base is detachably connected with a lower well body; the upper end of the lower well body is detachably connected with an adding well body; the upper end of the adding well body is detachably connected with an upper well body; the outer side of the lower well body is fixedly connected with a water inlet pipe; the outer side of the water inlet pipe is detachably connected with a fixed connecting pipe; a mounting frame is fixedly connected to the interior of the upper well body, a lower fixing frame is fixedly connected to the upper end of the mounting frame, an upper fixing frame is detachably connected to the upper end of the lower fixing frame, a filter screen is detachably connected to the interiors of the lower fixing frame and the upper fixing frame, and a well lid