The invention discloses a full-ceramic gear-roller pulverizer which comprises a body, a feeding hopper and a discharging outlet. The feeding hopper is located at the top of the body; the discharging outlet is located at the bottom of the body; a pulverizing cavity is formed in the body; a pair of ceramic gear rollers rotating oppositely is arranged at the portions, above the discharging outlet, of the interior of the pulverizing cavity; and materials fall into the gap between the two tooth faces of the pair of ceramic gear rollers and are pulverized through grinding in a staggered-moving mode by means of the bite force of the two tooth faces. By adopting the pair of ceramic gear rollers rotating oppositely, small block-shaped materials fall into the rushing cavity from a feeding inlet, then fall into the gap between the two tooth faces of the pair of ceramic gear rollers rotating oppositely and are pulverized through grinding in a staggered-moving mode by means of the bite force of the two tooth faces, and therefore special pulverization of relevant high-technology materials is achieved.