A scroll fluid machine comprising: a compressor body compressing air, said compressor body including: a fixed scroll ; an orbiting scroll ; an introduction guide supplying a cooling wind to the orbiting scroll via a first cooling wind inlet and to the fixed scroll via a second cooling wind inlet ; a drive shaft driving the orbiting scroll ; a motor coupled to the drive shaft , said motor including a motor casing ; a cooling fan including a fan casing with a bend provided on a side of the drive shaft opposite to the compressor body , the cooling fan generating a cooling wind being redirected by the bend ; and a cooling wind passage sending the cooling wind of the cooling fan to the compressor body , the cooling wind passage comprising an inside wall near the drive shaft and an outside wall far from the drive shaft , the cooling wind passage being a section between an inlet connection from the bend and an outlet connection to the introduction guide ; wherein the motor includes a rotor attached to the drive shaft between said orbiting scroll and said cooling fan ; and wherein a distance between the inside wall and the outside wall at the inlet connection of the cooling wind passage is smaller than a distance between the inside wall and the outside wall at the outlet connection of the the cooling wind passage, said distances being measured in a radial direction perpendicular to the drive shaft ; characterized in that said inside wall : - is separated from the motor casing , and - is inclined to the side of the drive shaft toward the downstream of the cooling wind passage . a fixed scroll ; an orbiting scroll ; an introduction guide supplying a cooling wind to the orbiting scroll via a first cooling wind inlet and to the fixed scroll via a second cooling wind inlet ; a drive shaft driving the orbiting scroll ; a motor coupled to the drive shaft , said motor including a motor casing ; a cooling fan including a fan casing with a bend provided on a side of the drive shaft opposite to the compressor body , the cooling fan generating a cooling wind being redirected by the bend ; and a cooling wind passage sending the cooling wind of the cooling fan to the compressor body , the cooling wind passage comprising an inside wall near the drive shaft and an outside wall far from the drive shaft , the cooling wind passage being a section between an inlet connection from the bend and an outlet connection to the introduction guide ; wherein the motor includes a rotor attached to the drive shaft between said orbiting scroll and said cooling fan ; and wherein a distance between the inside wall and the outside wall at the inlet connection of the cooling wind passage is smaller than a distance between the inside wall and the outside wall at the outlet connection of the the cooling wind passage, said distances being measured in a radial direction perpendicular to the drive shaft ; characterized in that said inside wall : - is separated from the motor casing , and - is inclined to the side of the drive shaft toward the downstream of the cooling wind passage . - is separated from the motor casing , and - is inclined to the side of the drive shaft toward the downstream of the cooling wind passage . <EOS>