Elevator air supply system

The utility model discloses an air supply system of an elevator. The air supply system comprises an air supply device communicated with natural air; the air supply channel is arranged in the elevatorshaft and communicated with the air supply device; at least one air supply port is formed in the air supply channel, and a mechanical air valve is arranged at each air supply port; wherein the mechanical collision bow and the air inlet are arranged on an elevator car, and the collision bow can open and close the mechanical air valve; and the air supply channel is communicated with the air exhaustdevice. By adopting a comprehensive ventilation technical measure, outdoor natural air is forcibly fed into an elevator shaft or/and an elevator car, and elevator waste heat, residual moisture or polluted gas is discharged out of a room by utilizing a system device, so that free flow and exchange between elevator space air and natural environment air are realized. 本实用新型公开了一种电梯送风系统，包括：与自然空气连通的送风装置；设置在电梯井道内、且与送风装置连通的送风通道；所述送