The present disclosure provides a dust-purifying adhesive layer, a dust-purifying film, and a dust-purifying film sleeve. The dust-purifying adhesive layer comprises a substrate layer, an optically clear adhesive (OCA) layer, and a dust-purifying layer, the dust-purifying layer and the OCA layer respectively disposed on two sides of the substrate layer, wherein the dust-purifying layer is adapted for dust-purifying and air bubbles elimination. Compared with the prior art, the dust-purifying adhesive layer comprises a dust-purifying layer having functions of dust-purifying function and anti-foaming and when the dust-purifying film is arranged on the screen of the electronic device, the dust-purifying layer is in direct contact with the screen, and during the film-pasting process, air bubbles can be quickly eliminated, so that no air bubbles are generated during the film-pasting process.