A propeller fan (5A, 5B) comprising: a hub having a side surface about a center axis; and a plurality of blades (12A, 12B) provided on the side surface of the hub, wherein each blade includes an inner peripheral portion (12Aa, 12Ba) positioned closer to a base portion (12A-11a, 12A-12a, 12B-11a, 12B-12a) of the each blade connected to the hub, and an outer peripheral portion (12Ab, 12Bb) positioned closer to an outer edge of the each blade, a ratio r/R between a radius r as a distance from the center axis to a boundary between the inner peripheral portion and the outer peripheral portion and a radius R as a distance from the center axis to the outer edge of each blade is equal to or lower than 0.4, a relational expression of V1 < V2 × 1.3 is satisfied, where an air velocity at the outer peripheral portion is V1 and an air velocity at the inner peripheral portion is V2, the outer peripheral portion is formed as a single blade surface, and the inner peripheral portion includes a plurality of blade elements (12A-11, 12A-12, 12B-11, 12B-12) disposed at a predetermined interval such that the base portions (12A-11a, 12A-12a) of each of a pair of said blade elements form an axial hole (12A-21) in the inner peripheral portion (12Aa, 128a), characterized in that the blade elements of each of a pair among said blade elements are positioned on an upstream and downstream side in a rotation direction of the hub, respectively, and connected to the same height position of the hub in its center axis direction. a hub having a side surface about a center axis; and a plurality of blades (12A, 12B) provided on the side surface of the hub, wherein each blade includes an inner peripheral portion (12Aa, 12Ba) positioned closer to a base portion (12A-11a, 12A-12a, 12B-11a, 12B-12a) of the each blade connected to the hub, and an outer peripheral portion (12Ab, 12Bb) positioned closer to an outer edge of the each blade, an inner peripheral portion (12Aa, 12Ba) positioned closer to a base portion (12A-11a, 12A-12a, 12B-11a, 12B-12a) of the each blade connected to the hub, and an outer peripheral portion (12Ab, 12Bb) positioned closer to an outer edge of the each blade, a ratio r/R between a radius r as a distance from the center axis to a boundary between the inner peripheral portion and the outer peripheral portion and a radius R as a distance from the center axis to the outer edge of each blade is equal to or lower than 0.4, a relational expression of V1 < V2 × 1.3 is satisfied, where an air velocity at the outer peripheral portion is V1 and an air velocity at the inner peripheral portion is V2, the outer peripheral portion is formed as a single blade surface, and the inner peripheral portion includes a plurality of blade elements (12A-11, 12A-12, 12B-11, 12B-12) disposed at a predetermined interval such that the base portions (12A-11a, 12A-12a) of each of a pair of said blade elements form an axial hole (12A-21) in the inner peripheral portion (12Aa, 128a), characterized in that the blade elements of each of a pair among said blade elements are positioned on an upstream and downstream side in a rotation direction of the hub, respectively, and connected to the same height position of the hub in its center axis direction.