Buffer type tunnel ventilation pipeline

The utility model discloses a buffer type tunnel ventilating duct, which comprises a hard shell (1), a buffer device (2), air pipe fixing devices (3) and soft air pipes (4), the soft air pipes (4) are attached to the hard shell (1), the air pipe fixing devices (3) are arranged on the two sides of the hard shell (1) in pairs and used for fixing the soft air pipes (4), the buffer device (2) comprises a buffer bag (22), and the buffer bag (22) is used for fixing the soft air pipes (4). A cavity is formed in the buffering bag (22) and used for providing buffering and sealing for the front hard shell (1) and the rear hard shell (1), and the problems that air leakage is prone to occurring at the joint of the tunnel ventilation pipeline, installation is tedious, and deformation is prone to occurring are solved. 本实用新型公开了一种缓冲式隧道通风管道，包括硬质外壳(1)、缓冲装置(2)、风管固定装置(3)和软质风管(4)，所述软质风管(4)与所述硬质外壳(1)贴合，所述风管固定装置(3)成对设置于所述硬质外壳(1)两侧，用于固定所述软质风管(4)，所述缓冲装置(2)包括缓冲囊(22)，所述缓冲囊(22)内设有空腔，用于为前后所述硬质外壳(1)提供缓冲和密封，解决了隧道通风管道连接处容易发生漏风和安装繁琐和易变形的问题。