Sand casting mold capable of preventing suffocation

The utility model relates to the technical field of casting molds, in particular to an anti-suffocation sand casting mold which comprises a mold bottom plate, the upper end face of the mold bottom plate is fixedly connected with a mold body, an air outlet is formed in the left side of the mold body, a first exhaust hole communicated with the air outlet is formed in the mold body in a penetrating mode, and a second exhaust hole communicated with the air outlet is formed in the mold body. A plurality of concave holes which are annularly distributed in parallel are formed in the right side of the interior of the air outlet, springs are fixedly connected to the right sides of the interiors of the concave holes, a sealing cover tightly attached to the right side of the interior of the air outlet is fixedly connected to the left sides of the springs, and a plurality of air outlet holes which are annularly distributed in parallel are formed in the left side of the sealing cover in a penetrating mode; and the multipl