Dairy product sampling device

The dairy product sampling device comprises a sampling column, a liquid collecting hole is formed in the end face of one end of the sampling column, a rotating rod is inserted into the other end of the sampling column, a sealing plug is arranged at an orifice of the liquid collecting hole, and a protective shell capable of moving in the length direction of the sampling column is arranged on the outer wall, where the liquid collecting hole is located, of the sampling column in a sleeving mode. One end of the rotating rod extends into the liquid collecting hole and is connected with a limiting rod used for limiting movement of the protective shell, a telescopic mechanism is arranged in the liquid collecting hole, the telescopic mechanism can drive the sealing plug to close the liquid collecting hole when the protective shell is limited to move, and the rotating rod can drive the sealing plug to open the liquid collecting hole through the telescopic mechanism when the protective shell moves. One end of the prote