Movable confined space ventilation pipe device

The utility model discloses a movable confined space air exchange pipe device which comprises an air exchange assembly, an air exchange pipe, an air exchange fan installed in an inner cavity of the air exchange pipe, a connecting pipeline connected to one side of the air exchange pipe and an activated carbon containing pipe connected to the other side of the air exchange pipe. The connecting assembly comprises symmetrically arranged connectors, elastic bases fixed to the bottom ends of the connectors and clamps rotationally installed on the outer walls of the connectors, the ventilation pipes are inserted into inner cavities of the connectors, the connecting pipeline is connected to the connector on one side, and the activated carbon containing pipe is connected to the other connector. An L-shaped clamping groove is formed in the outer wall of the connector, and a clamping block matched with the L-shaped clamping groove is fixed to the inner wall of the activated carbon containing pipe, so that when a worker