To provide a chaff recovery apparatus capable of efficiently collecting chaff in an air impermeable bag in a molded mode.

The chaff recovery apparatus 1 consists of a cyclone 2 receiving exhaust air to revolve the same to separate chaff and a chaff collection part 12 for collecting chaff separated by the cyclone 2 to collect the same in the air impermeable bag 13 of which the upper end is opened. The chaff collection part 12 is constituted of an outer frame body 14 holding the air impermeable bag 13 to a container shape and a chaff pressing member 15 inserted in the outer frame body 14 from the upper end opening thereof to press chaff accumulated in the air impermeable bag 13. The chaff pressing member 15 has a venting structure for discharging air in the air impermeable bag 13 accompanied by the pushing-down of the chaff pressing member.