Fuente: WIPO "hemp" The utility model provides an industrial hemp floral leaf countercurrent extraction device which comprises a conveying pipe, a rotatable rotating shaft arranged in the conveying pipe, spiral blades arranged on the rotating shaft, a connecting hole arranged on the pipe wall of the conveying pipe and communicated with the inner side and the outer side of the conveying pipe, a spray head connected in the connecting hole and in threaded connection with the connecting hole, and a liquid supply pipe, the liquid supply pipe is arranged in the length direction of the conveying pipe, a liquid outlet hole corresponding to the spray head is formed in the liquid supply pipe, one end of the spray head extends into the conveying pipe, the other end of the spray head is connected with the liquid outlet hole through a hose, and the liquid supply pipe is fixed to the conveying pipe through an annular hoop. A connecting hole connected with a spray head is formed in the side wall of a conveying pipe, the spray head is connected into the connecting hole and can spray an ethanol solution to hemp flowers and leaves in the conveying pipe, the spray head can plug the connecting hole and prevent ethanol liquid and the like from flowing out of the connecting hole, and a liquid supply pipe is arranged on the outer side of the conveying pipe and provides the sprayed solution for the spray head.