Improved frozen soil layer isotope sampling equipment

The invention discloses improved frozen soil layer isotope sampling equipment comprising an equipment base (1), two sliding rods (6) are arranged on the equipment base (1) in the vertical direction; agasoline drilling machine (7) is arranged between the two sliding rods (6); supporting sliding rods (8) are symmetrically arranged on the side wall of the gasoline drilling machine (7) and connectedwith the inner sides of the sliding rods (6), a driving main shaft (12) is arranged on the gasoline drilling machine (7), the lower end of the driving main shaft (12) is connected with a drill rod (2), and the lower end of the drill rod (2) is movably connected with a drill bit (3) or a sampling rod (4). According to the improved frozen soil layer isotope sampling equipment provided by the invention, the drill bit and the sampling rod can be replaced, isotope soil sample forming is guaranteed, the effect of protecting a collected sample is achieved, meanwhile, a sampling head is firmly connected, and slipping in the is