| 摘要 |
A dust collection device (26) is provided with a first centrifuge unit (41) which separates coarse dust within dust-containing air. The dust collection device (26) is provided with a second centrifuge unit (44) which is positioned above the first centrifuge unit (41) so as to be in communication with the first centrifuge unit (41). The second centrifuge unit (44) separates fine dust within the dust-containing air that has passed through the first centrifuge unit (41). The dust collection device (26) is provided with a closure lid portion (71) that can open and close a lower position of the second centrifuge unit (44). The closure lid portion (71), by opening the lower position of the second centrifuge unit (44), guides dust and dirt that has been separated by the second centrifuge unit (44) to the side of the first centrifuge unit (41). |
