Gas atomization device and method for preparing metal powder

The invention belongs to the technical field of metal powder preparation, and discloses a gas atomization device and method for preparing metal powder. The gas atomization device for preparing the metal powder comprises an atomization tank, a feeding tank is arranged in the atomization tank and used for injecting molten metal, a top opening of the feeding tank is located in the top of the atomization tank, and a first heating coil is arranged on the outer wall of the feeding tank. A bearing plate is further fixedly installed in the feeding tank through a connecting rod and located on the lower side of the feeding tank. According to the gas atomization device for preparing the metal powder and the method thereof, through the design of the bearing ring, heating is conducted again after the metal powder is formed, mutual bonding of the metal powder can be avoided through bearing of water vapor, meanwhile, the change from special-shaped metal powder to spherical metal powder can be completed within short heating