Geological and geotechnical investigation device with good visibility

The utility model discloses a geology and geotechnical investigation device with good visibility, which belongs to the technical field of geology investigation and comprises a fixed base, and a small dust collector is fixedly connected outside the left side of the fixed base through a fixing piece. According to the utility model, the fixed base and the depth scale values are arranged, so that when the driving motor operates to drive the exploration drilling machine to rotate, the exploration drilling machine can move up and down in the fixed base through the limiting hole and the limiting piece to carry out exploration drilling work on rock soil; at the moment, a return spring between the exploration drilling machine and the fixed base is stressed to stretch out and draw back up and down, and meanwhile, the upper edge of the fixed base is always aligned with a depth scale value corresponding to the drilling depth of a drill bit of the exploration drilling machine in the up-down moving process of the explorati