Powder distributing apparatus

Provided is a powder distribution device which can perform a desired distribution of even fine powder while suppressing the formation of aggregated particles. Compressed gas which is supplied from a compressed gas supply source (10) to a gas supply opening (9) flows into a gas pool section (8), is discharged into a compressed gas introduction chamber (5) from nozzles (7), forms a swirl gas flow within the cylindrical tube-shaped compressed gas introduction chamber (5) which is formed at the outer peripheral section of the lower-half section (2a) of a powder introduction pipe (2), and the swirl gas flow spreads downward to form a swirl gas flow which swirls within a cylindrical column-shaped distribution chamber (3) about the center axis (C). Powder which is introduced from the powder introduction pipe (2) enters the distribution chamber (3) from a powder introduction opening (6) which is formed in the lower end part of the powder introduction pipe (2), is exposed to the swirl gas flow and dispersed, and is th