NOVELTY - Device (13) has a main portion comprising raw material supply pipe (12) for supplying biomass raw material (11) from above in vertical axis direction, a pulverization table (14) on which the biomass raw material is placed, driving unit for rotationally driving the pulverization table, 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, and a classifier (19) for classifying the pulverized biomass powder (17).    USE - The device is useful for pulverizing biomass. The system is useful for co-combusting biomass and coal (claimed). The biomass is used as fuel.    ADVANTAGE - The device can be pulverized stably. The biomass replaces use of fossil fuel, hence global warming can be reduced.    DETAILED DESCRIPTION - Pulverization device (13) has a raw material supply pipe (12) for supplying biomass raw material (11) from above in vertical axis direction, a pulverization table (14) on which the biomass raw material is placed, driving unit for rotationally driving the pulverization table, 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, and a classifier (19) for classifying the pulverized biomass powder (17). The pulverization device is provided with a blowing gas introduction unit (21) for supplying blowing gas towards the central section of the pulverization table, and promoting the movement of the biomass raw material. The blowing unit forms upward flow towards upper direction from the outer peripheral side downward direction of the pulverization table, and ejects carrier gas which carries out air flow conveyance of the pulverized biomass powder. An INDEPENDENT CLAIM is included for biomass and coal co-combustion system, which comprises coal pulverization device for pulverizing coal raw material, and boiler furnace to which the pulverized biomass powder and coal-dust pulverized by the coal pulverization device are supplied.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of the biomass pulverization device.    Biomass raw material (11)    Raw material supply pipe (12)    Device (13)    Pulverization table (14)    Pulverization roller (16)    Pulverized biomass powder (17)    Classifier (19)    Blowing gas introduction unit (21)