Dry gas sealing structure

The invention relates to a dry gas sealing structure which comprises a shaft sleeve, a movable ring, a static ring, a static ring seat, a compression spring and a push ring. Wherein the push ring is of a T-shaped structure composed of a radial part and an axial part, and the axial part comprises a first axial part and a second axial part which are located on the two sides of the radial part; the dry gas sealing structure further comprises a first sealing ring and a second sealing ring. The first axial part is arranged to be of a push ring guide structure, the outer ring face of the first axialpart and the inner ring face of the static ring base form sealing at the first sealing ring, and the first axial part can float in the axial direction and the radial direction relative to the staticring base. Wherein one side of the radial part is connected with the compression spring; the other side of the radial part abuts against the non-sealing end face of the static ring and forms sealing with the static ring at the