Fixing device for double-wall corrugated pipe construction

The utility model discloses a fixing device for double-wall corrugated pipe construction, which relates to the technical field of communication pipelines, and comprises a double-wall corrugated pipe, a support device is movably arranged in the double-wall corrugated pipe, and the support device is used for supporting the inner wall of the double-wall corrugated pipe and supporting a wire rod to move in the double-wall corrugated pipe. The supporting device comprises a limiting block in movable contact with the double-wall corrugated pipe, one end of the limiting block is connected with a connecting rod, the free end of the connecting rod is fixedly connected with a screw rod, the screw rod is in threaded connection with a sliding seat used for supporting the inner wall of the double-wall corrugated pipe, and balls used for making contact with the inner wall of the double-wall corrugated pipe in a rolling mode are clamped to the sliding seat in a rolling mode. And fixing devices are arranged outside the double