To provide a pulverizer in which hardly pulverizable material can be subjected to pulverization at an ordinary temperature to effectively obtain uniform powder of superfine particles and there is no possibility of coarse particles being mixed in the product.

A pulverizer 1 has a fixed grindstone 2 and a rotary grindstone 3 installed in a casing 4 and a rotating blade 8 arranged on the back surface of a rotating disc 6. Fresh air sucked in from a hopper 10 is sent to between both the grindstones and is turned into a spin type rotating high speed air current A, which flows to be outward uniformly dispersed, and the air current that has gone to the outside is turned into a turning current while it is hit against the inner peripheral surface of a pulverizing chamber 4b. On the inner peripheral surface of the pulverizing chamber 4b, a corrugated lining plate 12 is attachably and detachably fitted so that material to be pulverized carried on the turning current and hit against it is pulverized. A collecting annular body 4d for distributing in layers the pulverized material according to the particle diameter is provided for the casing 4, to the upper end and the back surface of the annular body 4d, a secondary fine powder recovery tubular body 13 and a coarse particle reflux tubular body 14 communicating with a feeding pipe 9 are connected respectively.