Mobile closed space environment control device

The invention discloses a mobile closed space environment control device, which comprises an environment control system, a mobile container, a purification unit and a cooling unit, the winding device is installed on the container and comprises a fixed support, a driving winding unit and a driven winding unit, and the driving winding unit and the driven winding unit are coaxially installed on the fixed support; the purification unit comprises an exhaust hose, the cooling unit comprises a fresh air hose, and when the environment control system does not work, the exhaust hose and the fresh air hose are wound on the winding device. According to the device, all devices are integrated through a movable container, flexible movement is achieved according to the position of a welding closed area, movement operation is convenient, and the device is suitable for environment control under various different welding working conditions; after the device is used, hoses with different lengths can be automatically wound at the