Centrifugal separator comprising a separator housing and a separator wheel which rotates in the separator housing, wherein the separator housing has at least one inlet for the material to be separated, at least one coarse material outlet and at least one first fine material outlet, wherein the separator wheel is formed by a separator drum and a separator wheel shaft supporting the separator drum, and the circumferential jacket surface of the separator drum is perforated in such a way that it sets the material to be separated, which hits the separator drum on the outer jacket side, into rotation during operation and the air flow within the separator is designed in such a way that a separation air loaded with fine material flows through the circumferential jacket surface of the separator drum in a radially inward direction, wherein the at least one fine material outlet is arranged on the end of the separator drum and fine material is discharged from the interior of the separator drum into the at least one fine material outlet via the free front face of the separator drum, on the outside past the separator wheel shaft, characterized in that the separator wheel shaft consists of two parts (12, 13) which are not directly connected to one another in a supporting manner, and the first part of the separator wheel shaft extends outwards from a wheel disc which supports the separator drum in the region of its first front face, away from the separator drum, and the second part of the separator wheel shaft extends outwards from a wheel disc which supports the separator drum in the region of its second front face, away from the separator drum. wherein the separator housing has at least one inlet for the material to be separated, at least one coarse material outlet and at least one first fine material outlet, wherein the separator wheel is formed by a separator drum and a separator wheel shaft supporting the separator drum, and the circumferential jacket surface of the separator drum is perforated in such a way that it sets the material to be separated, which hits the separator drum on the outer jacket side, into rotation during operation and the air flow within the separator is designed in such a way that a separation air loaded with fine material flows through the circumferential jacket surface of the separator drum in a radially inward direction, wherein the at least one fine material outlet is arranged on the end of the separator drum and fine material is discharged from the interior of the separator drum into the at least one fine material outlet via the free front face of the separator drum, on the outside past the separator wheel shaft, characterized in that the separator wheel shaft consists of two parts (12, 13) which are not directly connected to one another in a supporting manner, and the first part of the separator wheel shaft extends outwards from a wheel disc which supports the separator drum in the region of its first front face, away from the separator drum, and the second part of the separator wheel shaft extends outwards from a wheel disc which supports the separator drum in the region of its second front face, away from the separator drum.