Intake blower, notably for a heating, ventilation and/or air-conditioning device of a motor vehicle, the blower comprising: - a turbine designed to be driven in rotation about an axis and having at least a first part referred to as the "upper part" and a second part referred to as the "lower part", - a blower housing surrounding the turbine and having a blower housing outlet extending mainly along an axis, - an air inlet housing having at least two separate air inlets (24, 26), and - a dividing partition extending so as to separate a first air flow intended to pass through the first axial part of the turbine from a second air flow intended to pass through the second axial part of the turbine, characterized in that the dividing partition has an upstream end extending into the air inlet housing in a main direction of extension orthogonal to the axis of extension of the blower housing outlet and to the axis of rotation of the turbine, and wherein: - the air inlet housing comprises an internal space delimiting an air flow area having a first dimension in a direction orthogonal to the axis of extension of the blower housing outlet and a second dimension parallel to the axis of extension of the blower housing outlet, and wherein - the upstream end of the dividing partition extends over the entirety of the first dimension and over a part of the second dimension, - the blower comprising at least three coaxial shutters (27, 28, 30), including a central shutter and two lateral shutters (28, 30) that are arranged on both sides of the central shutter, said coaxial shutters (27, 28, 30) being arranged between said two separate air inlets (24, 26) of the air inlet housing, moveably about a pivot axis parallel to the axis of extension of the blower housing outlet, - each of said coaxial shutters (27, 28, 30) being arranged moveably between a first end position, in which said shutter (27, 28, 30) closes an air inlet, and a second end position, in which said shutter (27, 28, 30) closes the other air inlet, - said blower further comprising an additional dividing partition arranged in the air inlet housing such as to at least partially surround an end region of the central shutter in an end position, - the additional dividing partition having a frame extending mainly in a direction of extension orthogonal to the axis of extension of the blower housing outlet, and a belt extends vertically from said frame to at least partially surround an end region of the central shutter in an end position, the frame being arranged opposite the upstream end of the dividing partition, the frame being complementary in shape to the upstream end of the dividing partition. - a turbine designed to be driven in rotation about an axis and having at least a first part referred to as the "upper part" and a second part referred to as the "lower part", - a blower housing surrounding the turbine and having a blower housing outlet extending mainly along an axis, - an air inlet housing having at least two separate air inlets (24, 26), and - a dividing partition extending so as to separate a first air flow intended to pass through the first axial part of the turbine from a second air flow intended to pass through the second axial part of the turbine, - the air inlet housing comprises an internal space delimiting an air flow area having a first dimension in a direction orthogonal to the axis of extension of the blower housing outlet and a second dimension parallel to the axis of extension of the blower housing outlet, and wherein - the upstream end of the dividing partition extends over the entirety of the first dimension and over a part of the second dimension, - the blower comprising at least three coaxial shutters (27, 28, 30), including a central shutter and two lateral shutters (28, 30) that are arranged on both sides of the central shutter, said coaxial shutters (27, 28, 30) being arranged between said two separate air inlets (24, 26) of the air inlet housing, moveably about a pivot axis parallel to the axis of extension of the blower housing outlet, - each of said coaxial shutters (27, 28, 30) being arranged moveably between a first end position, in which said shutter (27, 28, 30) closes an air inlet, and a second end position, in which said shutter (27, 28, 30) closes the other air inlet, - said blower further comprising an additional dividing partition arranged in the air inlet housing such as to at least partially surround an end region of the central shutter in an end position, - the additional dividing partition having a frame extending mainly in a direction of extension orthogonal to the axis of extension of the blower housing outlet, and a belt extends vertically from said frame to at least partially surround an end region of the central shutter in an end position, the frame being arranged opposite the upstream end of the dividing partition, the frame being complementary in shape to the upstream end of the dividing partition.