Construction waterproof drainage device for water conservancy project

The utility model relates to the technical field of construction waterproofing and drainage for hydraulic engineering, in particular to a construction waterproofing and drainage device for hydraulic engineering, which comprises a box body, a mounting shell is mounted on one side of the outer part of the box body, a storage box is arranged at the lower part of the inner part of the mounting shell, and a pump machine is fixed at the upper part of the inner part of the mounting shell; and a movable bottom plate is mounted at the bottom end of the mounting shell. According to the water-proof drainage device, the interior of the containing shell installed on the box body is divided into two spaces, the pump machine is installed on the upper portion so that water can be conveniently sucked into the box body through a water pipe, the containing box is arranged on the lower portion so that components such as the water pipe can be conveniently contained, and meanwhile the movable bottom plate is arranged so that the w