PURPOSE: To enable the continuous supply and efficient pipeline conveyance of transfer material by providing a transfer material supply means at the upstream end part of a conveyance pipe and Coanda pumps on the downstream side thereof, so that the transfer material can be conveyed by the flow formed inside the pipe.

CONSTITUTION: Granules 12 are supplied from a transfer material supply means 13 provided at the upper end part 11A of a conveyance pipe 11, and further compressed air is supplied to Coanda pumps 20 through a compressed air supply means 21, so that flow is generated inside the conveyance pipe 11 by the Coanda pumps 20. And the velocity of flow formed inside the conveyance pipe 11 at the outer circumferential part is greater than that at the inside of flow, and further the flow rate is increased compared with the flow rate of jet from injection nozzles. Thus, the granules 12 at the upstream end part 11A are taken into flow by a suction Coanda pump 20A and further the flow is maintained along the overall length of the conveyance pipe 11 by accelerating Coanda pumps 20B which are arranged at specified intervals along the conveyance pipe 11, so that the granules 12 can be conveyed with the flow to the downstream end part 11B.