Provided is an air cleaning apparatus configured to automatically change the direction in which a main body is disposed. To this end, the air cleaning apparatus is provided with: a main body case (10) an upper unit (50) disposed in an upper portion of the main body case (10) and an automatic turn unit (40) for changing the direction in which the main body case (10) is disposed, the main body case (10) having: a rear main body case (12) provided with a fan (20) for generating suctioning force for suctioning indoor air from outside the air cleaning apparatus and a front main body case (11) provided with an air cleaning filter (60) for cleaning the indoor air suctioned from outside the air cleaning apparatus, the front main body case (11) and the rear main body case (12) being coupled front-to-rear, and the automatic turn unit (40) being coupled to the main body case (10) while being sandwiched between the front main body case (11) and the rear main body case (12).
