pulverizer of the present invention is capable of performing soft pulverization dispersion with less constraining force a centrifugal media separation member 32 is disposed in a top region of the pulverization chamber 14 of the pulverization container 12 and adjacent to the central portion of the pulverization chamber 14 in opposed and axially spaced apart relation to the agitating member 22 and adapted to separate the pulverizing media 30 dispersed in the raw material slurry from the raw material the media separation member 32 comprises a boss 32 a having a tubular boss body formed with an internal space in a lower portion thereof and a closing plate 32 b for closing up the lower portion of the boss body the boss body of the boss 32 a is provided with a plurality of openings and the media separation member 32 is adapted to introduce only the raw material slurry into the internal space of the boss body through the openings while it is preferable that the media separation member 32 is disposed in coaxial relation with the agitating member 22 the axes thereof may be offset from each other a hollow rotary drive shaft 34 is fixed to that media separation member 32 the rotary drive shaft 34 extends upwardly to penetrate through the end plate 12 a and an upper end of the rotary drive shaft 34 is connected to a driving source via a non illustrated conventional driving mechanism to allow the rotary drive shaft 34 to be rotationally driven in the direction indicated by.