To solve a problem that there is a limit in a conveyance distance in any of conventional conveying apparatuses, and large-scale equipment is required for extending the conveyance distance, and huge labor and money are indispensable in installing such large-scale equipment.

Air injected from an air injection socket rotates a rotary vane. By this, an inner cylinder internal part in which a screw and the other attachment are internally arranged is rotated to assist the conveyance distance of an article to be conveyed. The air having rotated the rotary vane is blown as it is in the inner cylinder to exhibit an effect similar to conveyance distance extension assistance in an inner cylinder middle part. Furthermore, since large-scale equipment is not required, an economic effect such as the suppression of labor costs and equipment money is also exhibited.