Feeding device and kitchen waste vacuum collection system

The utility model relates to a feeding device and a kitchen waste vacuum collecting system. When a feeding pipe and a connecting pipe need to be disconnected, a driver is started; the driver drives the valve to rotate to the position where the sealing piece is located; and then the driver drives the valve to move towards the sealing piece, so that the valve is pressed on the sealing piece, the pipe opening of the feeding pipe is ensured to be tightly sealed, communication between the feeding pipe and the connecting pipe is cut off, peculiar smell in the connecting pipe is prevented from permeating into the feeding pipe, emission of the peculiar smell is reduced, and the sanitary quality in a place is improved. And meanwhile, the valve is matched with the sealing piece, so that the pipeline is vacuum and does not leak. When garbage in the throwing pipe reaches the preset garbage amount, the driver drives the valve to move away from the sealing piece, and the sealing piece is loosened; and then the driver drive