Wind-resisting and pressure-reducing device of wall

The utility model discloses a wind-resisting and pressure-reducing device of a wall. The device comprises a device outer frame. An inner side plate and an outer side plate are respectively arranged on two sides of the device outer frame. A movable plate is installed on the top in the device outer frame via a rotating shaft, and is capable of left-right rotating along the rotating shaft. An elastic supporting piece which is a spring is installed between the movable plate and the outer side plate. The natural length which free from external force of the spring is equal to the distance between the movable plate and the outer side plate. A rain flow guiding plate is installed at the inner bottom of the device outer frame. Fixed baffle plates are installed in the device outer frame and under the movable plate. The inner side plate and the outer side plate are hollowed out. A rain pipe nozzle joint is arranged at the bottom of the device outer frame. The beneficial effects are that the device is practical, low in production cost, and convenient to use, and wind load borne by a windward wall of a building is greatly reduced, so wind resisting ability of a building wall or an enclosure component is improved.