Air cleaner

An air cleaner comprising:

• a first body that includes an inlet at a peripheral surface of the first body, an annular outlet above the inlet, and a coupling groove that is inside the annular outlet;
• a second body that includes a guide wall that extends in outward directions to guide air discharged from the outlet, and an insertion pole that extends downward from the guide wall to be inserted into the coupling groove;
• and a coupler that is protruding outwardly from the insertion pole to attach the second body when the insertion pole is disposed at the coupling groove;
• wherein the coupler includes:
• a hook configured to be radially movably disposed inside the insertion pole, and having one end portion that protrudes outwardly from the insertion pole;
• and a hook button disposed on the guide wall, wherein when the hook button is moved upward the hook moves in an inward direction;
• wherein the hook includes:
• a first moving body that contacts the hook button and is configured to move based on the hook button;
• a second moving body that is bent downward from the first moving body and extend therefrom;
• and an insertion protrusion that is bent from an end of the second moving body and is configured to protrude toward an outside of the insertion pole.