Propeller fan, air-blowing device, and outdoor unit

This propeller fan (1, 201, 301, 401) comprises a boss (3) and a plurality of blades (5) provided on the outer surface of said boss (3). The suction side (15) of at least one of said blades (5) is provided with a protrusion (17, 217, 317, 417) that extends in the direction of rotation at a separation from the outer edge of the blade, and the slope(s) of the radially inward side(s) (17a) of said protrusion(s) (17, 217, 317, 417) is/are more gradual than the slope(s) of the radially outward side(s) (17b) thereof, making the airflow produced by the propeller fan (1, 201, 301, 401) uniform in the radial direction and preventing localized high-speed flows.