Small vacuum gas atomization powder making equipment and powder making method

The invention discloses small vacuum gas atomization powder making equipment and a powder making method.The powder making equipment comprises a smelting chamber, an atomization chamber and a vacuumizing assembly, the smelting chamber is arranged at the top of the atomization chamber, an atomization spraying disc is arranged at the joint of the smelting chamber and the atomization chamber, a bottom pouring type smelting furnace is arranged in the smelting chamber, and the small vacuum gas atomization powder making equipment further comprises a tail gas circulation assembly; the gas outlet end of the tail gas circulation assembly is tangentially communicated with the upper portion of the atomizing chamber, and the gas inlet end of the tail gas circulation assembly is communicated with the lower portion of the atomizing chamber. According to the small vacuum gas atomization powder manufacturing equipment, an existing crucible and tundish structure is replaced with the bottom injection type smelting furnace, the