Automatic ventilation shoe

The utility model discloses an automatic ventilation shoe, and relates to the field of shoes. The shoe comprises a sole, a first ETPU air bag combination and a second ETPU air bag combination are installed in the sole, an air inlet communicated with the interior of a shoe cavity is formed in the sole, an air outlet communicated with the exterior of the shoe cavity is formed in the side face of the sole, the first ETPU air bag combination is communicated with the air inlet through an air inlet guide pipe, and the second ETPU air bag combination is communicated with the air outlet through an air outlet guide pipe. The second ETPU air bag combination is communicated with the first ETPU air bag combination through a soft catheter, and the second ETPU air bag combination is communicated with the air outlet hole through an air outlet catheter. In the walking process of a person, the sole makes contact with or leaves away from the ground, an air bag air chamber is contracted or stretched, air enters and exits from t