Nitriding furnace normal-pressure inflation pressure-stabilizing structure and nitriding furnace

The utility model provides a normal-pressure inflating and pressure-stabilizing structure of a nitriding furnace and the nitriding furnace, and relates to the technical field of heat treatment equipment. The nitriding furnace normal-pressure inflation pressure stabilizing structure comprises a main exhaust pipeline, a bypass exhaust pipeline, a main exhaust part and a bypass exhaust part. The main exhaust pipeline is communicated with a hearth of the nitriding furnace, and the bypass exhaust pipeline is arranged on the main exhaust pipeline in parallel; the main path exhaust part is arranged on the main path exhaust pipeline, and the bypass exhaust part is arranged on the bypass exhaust pipeline; the maximum exhaust flow of the bypass exhaust part is smaller than the maximum exhaust flow of the main exhaust part. The nitriding furnace comprises a hearth and a nitriding furnace normal-pressure inflation pressure-stabilizing structure; and the nitriding furnace normal-pressure inflation pressure-stabilizing str