Adjustable two-dimensional code scanning gun

The utility model relates to the technical field of code scanning guns, and discloses an adjustable two-dimensional code scanning gun, which comprises a code scanning head, a code scanning port is fixedly arranged at the right end of the code scanning head, a plane lens is fixedly arranged at the inner end of the code scanning port, a triangular prism is fixedly arranged in the code scanning head, an adjusting seat is movably arranged in the code scanning head, and the adjusting seat is fixedly arranged in the code scanning head. A concave lens is fixedly installed at the inner end of the adjusting seat, a code scanning machine is fixedly installed at the bottom of the interior of the code scanning head, a scanning opening is fixedly formed in the upper end of the code scanning machine, the triangular prism is located on the left side of the plane lens, the concave lens is located below the triangular prism, and the scanning opening is located below the concave lens. According to the adjustable two-dimensiona