Portable environment-friendly sampling device

The portable environment-friendly sampling device comprises a sampling cylinder, first handles are fixedly connected to the two side faces of the upper end of the sampling cylinder, a piston is connected into the sampling cylinder in a sleeved mode, a second handle is fixedly connected to the upper end of the piston, a clamping groove is formed in the upper surface of one end face of the sampling cylinder, and a clamping groove is formed in the upper surface of the other end face of the sampling cylinder. A hinge is fixedly connected under the clamping groove, one side of the hinge is fixedly connected to the sampling cylinder, the other side of the hinge is fixedly connected with a piston anti-falling rod, and the other end of the piston anti-falling rod is fixedly connected with a piston; according to the utility model, by arranging the sampling cylinder of the round-corner rectangular columnar empty cylinder and the piston of the round-corner rectangular columnar sealed cube, the sampling device can adapt