Light hydraulic soil sampling drilling machine

The utility model belongs to the field of soil sampling drilling machines, and particularly relates to a light hydraulic soil sampling drilling machine which comprises a handle, an upper cover plate is fixedly connected to the middle of the handle, a protective cover is fixedly connected to the lower portion of the upper cover plate, a connecting cylinder is fixedly connected to the lower portion of the protective cover, and the connecting cylinder comprises a cylinder, a groove and a bolt. A groove is fixedly connected to the lower portion of the cylinder, a bolt is fixedly connected to the rear portion of the groove, and a clamping ring is fixedly connected to the lower portion of the connecting cylinder. Through the structural design of a handle, an upper cover plate, a protective cover, a connecting cylinder, a clamping ring, a butt joint cylinder, a shell, a fixing screw and a fixing block, the internal drill bit is more powerful, meanwhile, the internal height can be adjusted, the problems that original