To provide an antidust hinge which can improve the effect of suppressing the production of metal dust, and which enables cleaning to be relatively easily performed during cleaning maintenance.

In this hinge, a pair of vane members 11 and 12, the edges of which have barrel parts 11a and 12a, respectively, are connected together via a pivot 13 which passes through each of the barrel parts. In the pair of vane members, the barrel parts are provided almost throughout the lengths of their respective edges; resin pivot retainers 13 and 14 with one closed end and the other end with a formed opening are provided in the barrel parts in an inserted state, respectively; the openings 13c and 14c of the respective resin pivot retainers are arranged in an opposed manner; a bearing 15 is interposed between the ends of the pair of opposed pivot retainers; and one pivot retainer is provided with an annular enclosure part 14f for circumferentially enclosing the bearing.