Powder and automatic feedway that removes dust are blown to precision of metal 3D printer

The utility model relates to a 3D prints technical field, in particular to powder and automatic feedway that removes dust are blown to precision of metal 3D printer, set up and the whitewashed conveyer pipe way be connected with the suction hopper at 3D printer top including perpendicular, atomizing cavity is installed to the bottom that powder conveyer pipe said, fu luocang is installed to atomizing cavity's bottom, cancelled and set up the feed jar in the gas -tight silo for the gas -tight silo volume obviously reduces, has shortened gas -tight silo evacuation required time, according to actual need volume is laid and is waited to melt the bisque, avoids to bringing a large amount of unnecessary powders in the gas -tight silo into, and the stone in -process will be greater than a powder surplus of waiting to melt the bisque voluntarily and retrieve and set up in the feed bucket of 3D printer lower part at every turn. Realize quantitative feed and automatic function of retrieving unnecessary powder, avoided