The present invention relates to a sawdust boiler, and in a boiler for supplying heating and hot water by heating heating water using heat generated by burning sawdust pellets, so that the sawdust pellets can be discharged through an outlet formed to be opened in the lower portion thereof. One raw material silo; A raw material conveying means comprising a conveying tube communicating with the discharge port at a lower portion of the raw material reservoir, a conveying screw installed in the conveying tube, and a driving motor for driving the conveying screw; A combustion chamber for generating combustion heat by burning the sawdust pellet conveyed through the raw material conveying means; And a water tank for heating water by the heat of combustion of the combustion chamber, wherein the transfer pipe has a cutout portion formed on a lower surface thereof, and a reticular portion is installed on the cutout portion, so that sawdust pellets are transferred through the transfer pipe. The generated sawdust powder is discharged to the outside through the network without accumulating in the transfer pipe has an effect that can be smoothly transferred to the sawdust pellets.;Sawdust, boiler, reticular, transfer pipe
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