Geological drilling machine

The utility model discloses a geological drilling machine, it is applied to geological exploration field, be in including the annular base of circle, setting the support and the setting on base upperportion are in the rig on base upper portion, two montants and the base fixed connection of support, the horizontal pole of support and the upper end fixed connection of rig, the fixed spliced pole that is equipped with of lower extreme of rig, the lower extreme of spliced pole is fixed to be equipped with the connecting seat that corresponds with the inner ring of base, the connecting seat belowis equipped with two decurrent first drill bits on the drill bit and three above second drill bit, two rotatable symmetries of first drill bit set up at the edge of connecting seat, the three above second drill bit of the middle part equipartition of connecting seat, the utility model discloses can select different drill bits according to different geological drilling's requirement, can also adjust the size of probing diam