An air cleaner, comprising: an air cleaning module (100, 200) including a first fan housing having a housing space portion in which a first fan (160, 260) is accommodated; and an air guide (170, 270) that guides a flow of air being passed through the first fan (160, 260) and has an airflow path (172a,272a), wherein the air guide (170, 270) comprises: an outer wall (171, 271) and an inner wall (172, 272) positioned at an inside of the outer wall (171, 271), the outer wall (171,271) being disposed to surround the inner wall (172,272), and a motor accommodating portion (173, 273) that extends from the inner wall (172, 272) to the lower side, the motor accommodation portion (173, 273) being configured to accommodate a fan motor (165, 265) of the first fan (160, 260), and the air flow path (172a, 272a) is defined between an inner circumferential surface of the outer wall (171, 271) and an outer circumferential surface of the inner wall (172, 272) characterized in that the air cleaner further comprises: an air flow controller that is provided at an upper side of the air guide (170, 270) and adjusts a discharge direction of the airflow generated in the air cleaning module (100, 200), the air flow controller being rotatable in a clockwise direction or a counterclockwise direction about an axial direction of the airflow controller, and the air flow controller comprises a second fan housing in which a second fan is accommodated. an air cleaning module (100, 200) including a first fan housing having a housing space portion in which a first fan (160, 260) is accommodated; and an air guide (170, 270) that guides a flow of air being passed through the first fan (160, 260) and has an airflow path (172a,272a), wherein the air guide (170, 270) comprises: an outer wall (171, 271) and an inner wall (172, 272) positioned at an inside of the outer wall (171, 271), the outer wall (171,271) being disposed to surround the inner wall (172,272), and a motor accommodating portion (173, 273) that extends from the inner wall (172, 272) to the lower side, the motor accommodation portion (173, 273) being configured to accommodate a fan motor (165, 265) of the first fan (160, 260), and an outer wall (171, 271) and an inner wall (172, 272) positioned at an inside of the outer wall (171, 271), the outer wall (171,271) being disposed to surround the inner wall (172,272), and a motor accommodating portion (173, 273) that extends from the inner wall (172, 272) to the lower side, the motor accommodation portion (173, 273) being configured to accommodate a fan motor (165, 265) of the first fan (160, 260), and the air flow path (172a, 272a) is defined between an inner circumferential surface of the outer wall (171, 271) and an outer circumferential surface of the inner wall (172, 272) characterized in that the air cleaner further comprises: an air flow controller that is provided at an upper side of the air guide (170, 270) and adjusts a discharge direction of the airflow generated in the air cleaning module (100, 200), the air flow controller being rotatable in a clockwise direction or a counterclockwise direction about an axial direction of the airflow controller, and the air flow controller comprises a second fan housing in which a second fan is accommodated. an air flow controller that is provided at an upper side of the air guide (170, 270) and adjusts a discharge direction of the airflow generated in the air cleaning module (100, 200), the air flow controller being rotatable in a clockwise direction or a counterclockwise direction about an axial direction of the airflow controller, and the air flow controller comprises a second fan housing in which a second fan is accommodated.