An air ventilator for an automobile, comprising: a housing comprising a flow path, which is formed through the housing and through which air is blown; a wind direction control unit comprising a louver to adjust a wind direction of the air supplied through the flow path; a function carrier fixedly installed in a central rear portion of the wind direction control unit; a shaft comprising: a spherical coupling portion formed on a first side portion of the shaft, wherein the function carrier is mounted on the coupling portion such that the function carrier is rotatable upwards, downwards, leftwards, and rightwards; and an output bevel gear formed on a second side portion of the shaft; and a pair of dampers coupled to a hinge so as to be foldable, wherein each of the pair of dampers comprises an input bevel gear to be engaged with the output bevel gear, wherein the function carrier is divided into a first function carrier and a second function carrier, which are dividedly formed and capable of being connected to each other, characterized in that the function carrier is rotatably installed by coupling the first function carrier and the second function carrier to each other and to the coupling portion such that insertion protrusions protruding from inner portions of the first function carrier and the second function carrier are maintained as being inserted into rail grooves formed in the coupling portion. a housing comprising a flow path, which is formed through the housing and through which air is blown; a wind direction control unit comprising a louver to adjust a wind direction of the air supplied through the flow path; a function carrier fixedly installed in a central rear portion of the wind direction control unit; a shaft comprising: a spherical coupling portion formed on a first side portion of the shaft, wherein the function carrier is mounted on the coupling portion such that the function carrier is rotatable upwards, downwards, leftwards, and rightwards; and an output bevel gear formed on a second side portion of the shaft; and a pair of dampers coupled to a hinge so as to be foldable, wherein each of the pair of dampers comprises an input bevel gear to be engaged with the output bevel gear, wherein the function carrier is divided into a first function carrier and a second function carrier, which are dividedly formed and capable of being connected to each other, characterized in that the function carrier is rotatably installed by coupling the first function carrier and the second function carrier to each other and to the coupling portion such that insertion protrusions protruding from inner portions of the first function carrier and the second function carrier are maintained as being inserted into rail grooves formed in the coupling portion. a spherical coupling portion formed on a first side portion of the shaft, wherein the function carrier is mounted on the coupling portion such that the function carrier is rotatable upwards, downwards, leftwards, and rightwards; and an output bevel gear formed on a second side portion of the shaft; and a pair of dampers coupled to a hinge so as to be foldable, wherein each of the pair of dampers comprises an input bevel gear to be engaged with the output bevel gear, wherein the function carrier is divided into a first function carrier and a second function carrier, which are dividedly formed and capable of being connected to each other, characterized in that the function carrier is rotatably installed by coupling the first function carrier and the second function carrier to each other and to the coupling portion such that insertion protrusions protruding from inner portions of the first function carrier and the second function carrier are maintained as being inserted into rail grooves formed in the coupling portion.