Environment-friendly waterproof device for building outer wall

The utility model relates to the technical field of building outer walls, in particular to an environment-friendly waterproof device for a building outer wall, which comprises a building outer wall foundation, a building outer wall foundation guardrail is welded on the upper surface of the building outer wall foundation, and a building side outer wall is poured on the side surface of the buildingouter wall foundation by cement. The outer surface of the building side outer wall is connected with a side outer wall waterproof plate in an adhesive mode, the front surface of the side outer wall waterproof plate is provided with a building front outer wall in a cement pouring mode, and the front surface of the building front outer wall is connected with a front outer wall waterproof plate in anadhesive mode. Through the designed side outer wall waterproof plate and the designed front outer wall waterproof plate, water on the outer side can be effectively prevented from entering the room, then water is effectively p