To provide a system for recovering a filter, which maintains dust collection ability.

The system 2 for recovering a filter, which is utilized for a device 1 for preventing dust, includes: rollers 22 disposed in both sides of a duct 11; a belt-like filter 21 spanned over the rollers 22 and moving in accordance with the rollers 22; an adhesive unit 24 for making the dust that is attached to the filter 21 adhere to the filter 21; and a hole formation unit 25 disposed on a traveling direction side of the filter 21 relative to the adhesive unit 24 and forming a ventilation hole 21a in the filter 21 to which the dust has adhered.