PURPOSE: To provide a pulverizer by which a material to be pulverized is continuously subjected to pulverizing treatment and also pulverized fragments of uniform size are obtained, and to restrain the vibration and noise generated in the pulverizer with the operation of the pulverizer.

CONSTITUTION: A pulverizer D1 is provided with a base 10, a motor M arranged on the base 10, a rotating shaft 20 arranged perpendicular to the horizontal surface (base plate 12) of the base 10, a pulverizing blade unit 30 arranged on the rotating shaft 30, a pulverizing chamber enclosing the pulverizing blade unit 30, and a guiding part 40 for a material to be pulverized arranged above the pulverizing chamber. The rotating shaft 20 is freely rotatably supported by a 1st bearing 22, a 2nd bearing 24 and the base plate 12. The pulverizing chamber has an opening CR1 on the upper part thereof.