A totally-enclosed traction motor comprising: a stator; a rotor including a rotor core placed on an inner circumference side of the stator, a cooling fan, and an iron core holder (5, 6) covering opposite ends of the rotor core; a frame containing the stator and the rotor; a bracket connected to the frame and supporting a rotor shaft; and a bearing unit provided in the bracket to support the rotor shaft, wherein the cooling fan includes a main plate that increases in diameter from the iron core holder towards the bracket and that separates an inside and an outside of the totally-enclosed traction motor, a plurality of first blades provided on a bracket side of the cooling fan and along a circumferential direction of the rotor, and a first guide placed on the bracket side of the first blades and parallel to the main plate, in the bracket, an inlet is provided within an area obtained when the first guide is projected onto the bracket, and the first guide is formed such that air drawn in through the inlet is, first, guided through a space defined by the first guide and the bracket towards the rotator shaft, is, next, turned by a space defined by the first guide, the bracket, the rotator shaft, and the main plate into the opposite direction away from the rotator shaft, and is, further, guided along the main plate through a space defined by the first guide and the main plate in the direction away from the rotor shaft. a stator; a rotor including a rotor core placed on an inner circumference side of the stator, a cooling fan, and an iron core holder (5, 6) covering opposite ends of the rotor core; a frame containing the stator and the rotor; a bracket connected to the frame and supporting a rotor shaft; and a bearing unit provided in the bracket to support the rotor shaft, wherein the cooling fan includes a main plate that increases in diameter from the iron core holder towards the bracket and that separates an inside and an outside of the totally-enclosed traction motor, a plurality of first blades provided on a bracket side of the cooling fan and along a circumferential direction of the rotor, and a first guide placed on the bracket side of the first blades and parallel to the main plate, a main plate that increases in diameter from the iron core holder towards the bracket and that separates an inside and an outside of the totally-enclosed traction motor, a plurality of first blades provided on a bracket side of the cooling fan and along a circumferential direction of the rotor, and a first guide placed on the bracket side of the first blades and parallel to the main plate, in the bracket, an inlet is provided within an area obtained when the first guide is projected onto the bracket, and the first guide is formed such that air drawn in through the inlet is, first, guided through a space defined by the first guide and the bracket towards the rotator shaft, is, next, turned by a space defined by the first guide, the bracket, the rotator shaft, and the main plate into the opposite direction away from the rotator shaft, and is, further, guided along the main plate through a space defined by the first guide and the main plate in the direction away from the rotor shaft.