Rock-soil layer drilling equipment for geological survey

The invention discloses rock-soil layer drilling equipment for geological survey, and relates to the technical field of survey. The rock-soil layer drilling equipment for geological survey comprises a support frame body and a driving mechanism, a depth adjusting assembly is arranged in the support frame body, and the depth adjusting assembly comprises a servo motor, a threaded rod, nut pieces and a first belt; a mounting plate is connected between the two nut pieces, the driving mechanism comprises a driving motor, a driving shaft and a protection box, the lower end of the driving shaft penetrates through the protection box and is fixedly provided with a rotating rod, a cylindrical cutter is fixedly arranged at the lower end of the rotating rod, and a sampling mechanism is fixedly arranged on one side of the rotating rod on the surface of the upper end of the cylindrical cutter; and rock-soil generated by drilling can be effectively discharged in time by the rock-soil layer drilling equipment for geological s