Simple ventilation and exhaust device for long tunnel

The utility model discloses a long tunnel simple ventilation and exhaust device which comprises an air duct, a relay fan, an air chamber, a filter device and a supporting piece, one side of the air duct is fixedly connected with the relay fan, the bottom of the air duct is fixedly connected with the air chamber, the filter device is located in the air chamber, the bottom of the air chamber is fixedly connected with the top of the supporting piece, and an air inlet is formed in the bottom of the supporting piece. The simple ventilation and exhaust device for the long tunnel is simple in structure, convenient to install and capable of providing additional air supply points for tunnel ventilation and improving the tunnel ventilation effect. 本实用新型公开了一种长隧道简易通排风装置，包括：风筒、接力风机、风室、过滤装置、支撑件，风筒一侧与接力风机固定连接，风筒底部与风室固定连接，过滤装置位于风室内部，风室底部与支撑件顶部固定连接，所述支撑件底部设置有进风口。本实用新型的一种长隧道简易通排风装置结构简单，安装方便，能为隧道通风提供额外的供风点，提升隧道通风效果。