Classified sampling equipment for geological exploration

The invention discloses classified sampling equipment for geological exploration, and relates to the technical field of geological exploration, the classified sampling equipment is characterized in that an electric lifting rod is vertically arranged in a first cylinder, a fixed part of the electric lifting rod is rotatably embedded in the top of the first cylinder, and an output shaft of a first motor is connected to a fixed end of the electric lifting rod; the collecting assembly is arranged at the bottom end of the electric lifting rod, the first cylinder is sleeved with the second cylinder in a threaded mode, the collecting assemblies are arranged on the inner walls of the two sides of the second cylinder, and the rotating mechanisms are arranged on the two sides of the first cylinder; the first barrel is driven by the rotating mechanism to rotate into soil, the collector is arranged in the soil through the electric lifting rod to collect a soil sample, the collector which collects the sample is placed in