The present invention addresses the problem of the interior of a casing becoming easily visible and the appearance of an indoor unit worsening during operation of the indoor unit when a front-surface panel moves away from the front surface of the casing. To this end, this indoor unit has a casing (5) and a front-surface panel (7) positioned at the front of the casing (5) and capable of moving away from the front surface of the casing (5). The area near both lengthwise ends of the front surface of the casing (5) (the front surface of a front-surface grille (6)) curves in a manner such that the depth dimension increases toward the lengthwise center section thereof. The front-surface panel (7) curves in a manner such that the center section thereof bulges forward, and has extending sections (71, 71) which extend farther to the outside than both ends of the front surface of the casing (5) (front surface of the front-surface grille (6)).