An air cleaner comprising: a housing (10a, 10b) having a cross section in a circular shape; a first inlet (no) disposed at a lower portion of the housing (10a, 10b); a first filter assembly disposed inside the housing (10a, 10b) and at a portion of the housing (10a, 10b) corresponding to the first inlet (no); a first fan disposed inside the housing (10a, 10b) above the first filter assembly, the first fan causing air drawn from the first inlet (no) to pass through the first filter assembly and move along a vertical direction inside the housing; a second inlet disposed above the first fan; a second filter assembly inside the housing and at a portion of the housing (10a, 10b) corresponding to the second inlet; a second fan disposed inside the housing (10a, 10b) above the second filter assembly, the second fan causing air drawn from the second inlet to pass through the second filter assembly and move along a direction toward an upper portion of the housing; and a discharge member disposed over the upper portion of the housing, comprising: a first outlet through which a first portion of air is discharged from the air cleaner in a lateral direction of the air cleaner; and a second outlet through which a second portion of the air is discharged from the air cleaner in an upward direction, wherein the discharge member is configured to move upward and downward, and when the discharge member moves down, air is discharged only through the second outlet, and when the discharge member moves upward, air is discharged through the first outlet and the second outlet. a housing (10a, 10b) having a cross section in a circular shape; a first inlet (no) disposed at a lower portion of the housing (10a, 10b); a first filter assembly disposed inside the housing (10a, 10b) and at a portion of the housing (10a, 10b) corresponding to the first inlet (no); a first fan disposed inside the housing (10a, 10b) above the first filter assembly, the first fan causing air drawn from the first inlet (no) to pass through the first filter assembly and move along a vertical direction inside the housing; a second inlet disposed above the first fan; a second filter assembly inside the housing and at a portion of the housing (10a, 10b) corresponding to the second inlet; a second fan disposed inside the housing (10a, 10b) above the second filter assembly, the second fan causing air drawn from the second inlet to pass through the second filter assembly and move along a direction toward an upper portion of the housing; and a discharge member disposed over the upper portion of the housing, comprising: a first outlet through which a first portion of air is discharged from the air cleaner in a lateral direction of the air cleaner; and a second outlet through which a second portion of the air is discharged from the air cleaner in an upward direction, wherein the discharge member is configured to move upward and downward, and when the discharge member moves down, air is discharged only through the second outlet, and when the discharge member moves upward, air is discharged through the first outlet and the second outlet. a first outlet through which a first portion of air is discharged from the air cleaner in a lateral direction of the air cleaner; and a second outlet through which a second portion of the air is discharged from the air cleaner in an upward direction, wherein the discharge member is configured to move upward and downward, and when the discharge member moves down, air is discharged only through the second outlet, and when the discharge member moves upward, air is discharged through the first outlet and the second outlet.