NOVELTY - Biomass pulverization device (13) comprises a raw material supply pipe (12) which supplies biomass raw material (11) in the vertical axis direction, a pulverization table (14) on which the biomass raw material is placed, a pulverization roller (16) which moves in conjunction with the rotation of the pulverization table, and pulverizes the biomass raw material by pressing force, a blowing unit which generates an updraft, and a classifier (19) which classifies the pulverized biomass powder (17).    USE - The device is useful for pulverizing biomass solid substance. The biomass is chosen from woods, grass and trees, agricultural products, and garbages.    ADVANTAGE - The device is stable, and reduces emission of carbon dioxide and hence global warming can be prevented. The raw material of large particle can be pulverized easily.    DETAILED DESCRIPTION - Biomass pulverization device (13) comprises a raw material supply pipe (12) which supplies biomass raw material (11) in the vertical axis direction, a pulverization table (14) on which the biomass raw material is placed, a pulverization roller (16) which moves in conjunction with the rotation of the pulverization table, and pulverizes the biomass raw material by pressing force, a blowing means which generates an updraft, and a classifier (19) which classifies the pulverized biomass powder (17). Several table grooves (31) are formed on the surface of a table liner (14b) of the pulverization table radiating towards the outer edge side of the pulverization table from its inner peripheral section, and the tips of the grooves are near the central section of the table liner. An INDEPENDENT CLAIM is included for biomass and coal mixed combustion system, which comprises the biomass pulverization device, coal pulverization device which pulverizes a coal raw material, boiler furnace to which the biomass powder is pulverized by the biomass pulverization device and the coal-dust material pulverized by the coal pulverization device.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of biomass pulverization device.    Biomass raw material (11)    Raw material supply pipe (12)    Biomass pulverization device (13)    Pulverization table (14)    Table liner (14b)    Pulverization roller (16)    Pulverized biomass powder (17)    Classifier (19)    Table grooves (31)