Robot cleaner

A cleaner comprising:

• a cleaner main body defining an external appearance of the cleaner;
• a fan unit mounted in the cleaner main body to generate suction force;
• a suction unit coupled to the cleaner main body and having a suction port to suction air containing dust via driving of the fan unit and a first discharge port and a second discharge port to discharge the air containing the dust;
• a first guide member coupled to the first discharge port;
• a second guide member coupled to the second discharge port;
• and
• a cyclone unit to separate the dust from the air suctioned through the suction port using centrifugal force, the cyclone unit having a first communication hole communicating with the first guide member and a second communication hole communicating with the second guide member,
• wherein the air guided by the first guide member and the air guided by the second guide member are mixed with each other in the cyclone unit and
• wherein the first guide member and the second guide member are coupled perpendicularly to the first discharge port and the second discharge port.