An air cleaner comprising: a housing which forms an outer shape of the air cleaner and comprises a suction port in a lower circumferential surface thereof; a filter which is disposed inside the housing and configured to remove foreign substances in air flowing into the suction port; a cover which is disposed above the filter and forms a discharge port opened upward; a fan which is disposed between the suction port and the discharge port, configured to rotate around a first rotation axis formed in a vertical direction, and configured to allow the air in the housing to flow from the suction port to the discharge port; a flow path body (181a, 181b) which is disposed vertically between the fan and the cover, and arranged to form an annular flow path through which air flows; characterised in that the air cleaner further comprises: a first guider which comprises a plurality of first vanes that are disposed in a flow path formed inside the flow path body (181a, 181b) and disposed substantially perpendicular to the first rotation axis, and is configured to change an arrangement of the plurality of first vanes with respect to a second rotation axis substantially perpendicular to the first rotation axis; and a second guider which comprises a plurality of second vanes that are disposed in the flow path formed inside the flow path body (181a, 181b) and substantially perpendicular to the first rotation axis and obliquely disposed relative to the first vanes, and is configured to change an arrangement of the second vanes with respect to a third rotation axis that is perpendicular to the first rotation axis and not in parallel with the second rotation axis. a housing which forms an outer shape of the air cleaner and comprises a suction port in a lower circumferential surface thereof; a filter which is disposed inside the housing and configured to remove foreign substances in air flowing into the suction port; a cover which is disposed above the filter and forms a discharge port opened upward; a fan which is disposed between the suction port and the discharge port, configured to rotate around a first rotation axis formed in a vertical direction, and configured to allow the air in the housing to flow from the suction port to the discharge port; a flow path body (181a, 181b) which is disposed vertically between the fan and the cover, and arranged to form an annular flow path through which air flows; characterised in that the air cleaner further comprises: a first guider which comprises a plurality of first vanes that are disposed in a flow path formed inside the flow path body (181a, 181b) and disposed substantially perpendicular to the first rotation axis, and is configured to change an arrangement of the plurality of first vanes with respect to a second rotation axis substantially perpendicular to the first rotation axis; and a second guider which comprises a plurality of second vanes that are disposed in the flow path formed inside the flow path body (181a, 181b) and substantially perpendicular to the first rotation axis and obliquely disposed relative to the first vanes, and is configured to change an arrangement of the second vanes with respect to a third rotation axis that is perpendicular to the first rotation axis and not in parallel with the second rotation axis. a first guider which comprises a plurality of first vanes that are disposed in a flow path formed inside the flow path body (181a, 181b) and disposed substantially perpendicular to the first rotation axis, and is configured to change an arrangement of the plurality of first vanes with respect to a second rotation axis substantially perpendicular to the first rotation axis; and a second guider which comprises a plurality of second vanes that are disposed in the flow path formed inside the flow path body (181a, 181b) and substantially perpendicular to the first rotation axis and obliquely disposed relative to the first vanes, and is configured to change an arrangement of the second vanes with respect to a third rotation axis that is perpendicular to the first rotation axis and not in parallel with the second rotation axis.