Air cleaner

An air cleaner, comprising:

• a centrifugal fan;
• a circulator disposed at an upper side of the centrifugal fan, the circulator being configured to adjust a direction of air that passes through the centrifugal fan, the circulator including:
• an introduction grill into which air passing through the centrifugal fan is introduced;
• a fan housing provided above the introduction grill;
• and
• a circulation fan provided within a space defined by the introduction grill and the fan housing;
• an air guide configured to guide a flow of air passing through the centrifugal fan, the air guide defining an air flow path;
• and
• a discharge guide provided on an upper side of the air guide and guiding air passing through the air guide to the introduction grill, the discharge guide including:
• a discharge inner wall including an inner circumferential surface having a cylindrical shape;
• a discharge outer wall that surrounds the discharge inner wall;
• a discharge flow path defined between an inner circumferential surface of the discharge outer wall and an outer circumferential surface of the discharge inner wall and passing air flowing upward by the air flow path;
• and
• a discharge grill disposed in the discharge flow path, the discharge grill being extended from the outer circumferential surface of the discharge inner wall to the inner circumferential surface of the discharge outer wall,
• wherein the discharge grill is formed in a concave shape in the downward direction corresponding to a shape of the introduction grill.