Indoor unit and air conditioner

The indoor unit comprises a machine shell, an air duct component, a first air guide part and a second air guide part, the air duct component is arranged in the machine shell and forms an air duct, the air outlet side of the air duct component is provided with a first air duct wall and a second air duct wall which are opposite, and the first air guide part and the second air guide part are arranged oppositely. The first air guide part is close to the first air duct wall, the first air guide part and the first air duct wall are arranged in a spaced mode, the first air guide part can rotate relative to the first air duct wall, the second air guide part is rotatably connected to the second air duct wall, and the first air guide part and the second air guide part form an air outlet communicated with the air duct; the rotating axis of the first air guiding piece and the rotating axis of the second air guiding piece are both parallel to the height direction of the air outlet, and the rotating axis of the first air guiding piece is located outside the first air guiding piece. According to the technical scheme, through cooperation of the first air guiding piece and the second air guiding piece, the air outlet angle is adjusted in the width direction of the air outlet, and air swinging in the width direction of the air outlet is achieved.