Removable rotating shaft type dustproof anticorrosive dampener

The utility model relates to a removable rotating shaft type dustproof anticorrosive dampener, and relates to a dampener, of which a rotating shaft is not easy to be clamped. The dampener comprises an shaft cap, throttle shaft sleeves, a perforated copper sheathing, a sleeve washer, a throttle shaft, a throttle baffle, a throttle body, a throttle limiting plate and a limiting spanner, and is characterized in that two ends of the throttle baffle are respectively connected with the throttle shaft penetrating through the throttle body by bolts; the perforated copper sheathing and the throttle shaft sleeve are sequentially sleeved on the throttle shaft from inside to outside; the throttle shaft sleeve is in bolted connection with the sleeve washer welded on the throttle body; one throttle shaft sleeve is provided with the shaft cap by a bolt, and the other throttle shaft sleeve is linked with the throttle limiting plate by a bolt; and the limiting spanner is arranged at the upper part of the throttle limiting pla