Double-end-face mechanical seal for double-screw compressor

The double-end-face mechanical seal comprises a shaft sleeve, a first flange and a second flange, the first flange and the second flange are arranged outside the shaft sleeve in a sleeved mode, a first installation groove is formed in the inner wall of the end, away from the second flange, of the first flange, and a main static ring is assembled in the first installation groove. A first movable ring groove is formed in the outer portion of the end, located in an inner hole of the first flange, of the shaft sleeve, a driving ring capable of sliding in the axial direction is assembled in the first movable ring groove, a first elastic compensation element is arranged between the driving ring and the bottom of the first movable ring groove, and the driving ring abuts against the friction face of the main static ring in a relative rotation mode to form main sealing. A plurality of flushing holes which are distributed in the circumferential direction and correspond to the friction face of the main seal are formed i