The present invention relates to a drilling machine screw soil removal device, and more particularly, a drilling machine installed in a lower auger constituting a drilling machine to automatically remove soil buried in the screw, thereby enabling stable drilling work without separately managing the screw It relates to a screw soil removal device. The present invention for achieving the above object is a drilling screw soil removal device installed in a drilling machine comprising a lower auger and a screw, a support part installed in the lower auger, and a support part installed in the lower auger, and it is installed in the support part and protrudes to the upper part of the lower auger It is characterized in that it comprises a soil removal unit for removing the soil of the screw.
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