Environment protection device for building

The utility model relates to an environment protection device for buildings, which is composed of an upper fixing seat, a lower fixing seat, a plurality of winding components and metal wires. The upper fixing seat and the lower fixing seat are respectively provided with a frame, and the frames are respectively extended with a fixed dam along the bottom side of the upper fixing seat and the top side of the lower fixing seat. A part which is on the fixed dam and is near to the frame is provided with a stress plate which protrudes inside, and a groove is formed between the frame and the stress plate; the side which the frame is away from the fixed dam is protruded with another stress baffle, and the length of the stress baffle is the same as the width of the groove. Each winding component is provided with a rectangular plate which can be clamped in the groove and a cover, and the rectangular plate is provided with a projection which is used for winding the metal wires, and the projection can be correspondingly covered by the cover to clamp the metal wires. The utility model can not break the appearance of a building. The utility model has the advantages of high safety, good protective property, long service life, sanitation and environmental protection. The utility model can be used as a protector of channels, such as windows, balconies, etc. in a building.