Refeeding device of single crystal furnace

The utility model belongs to the technical field of single crystal furnaces. In order to solve the problems that potential safety hazards exist and the product quality is easily affected due to the fact that a re-feeding cylinder is manually stabilized in the prior art, the re-feeding device of the single crystal furnace structurally comprises a re-feeding cylinder which is provided with an upper flange and a lower flange; the guide sleeve is arranged between the upper flange and the lower flange; wherein the guide sleeve is provided with a plurality of guide wheels which are propped against the inner wall of an auxiliary chamber of the single crystal furnace; the multiple guide wheels are evenly distributed in the circumferential direction of the re-feeding cylinder. According to the re-throwing device, the guide wheel is propped against the inner wall of the auxiliary chamber of the single crystal furnace, so that the re-throwing barrel is assisted to be stable, the re-throwing barrel is adjusted from an in