Filter centrifuge for filtering a solid material (F) out of a suspension formed by the solid material (F) and a liquid, including a filter drum which defines a filter drum inner surface and a filter drum longitudinal axis (L1) and which is rotatable about the filter drum longitudinal axis (L1), and a solid material discharge device for discharging the filtered-out solid material (F) from the filter drum in the context of a discharge operation of the filter centrifuge , wherein the solid material discharge device comprises a discharge device arm having a free arm end , and a solid material discharge line which is formed on the arm and through which the filtered-out solid material (F) can be led out of the filter drum and which has a solid material inlet opening which is disposed adjacent to the free arm end and through which the filtered-out solid material (F) can get from the filter drum into the solid material discharge line , wherein the discharge device arm is pivotable about a pivot axis (L2) arranged at a distance from the free arm end , which is at least substantially parallel to the filter drum longitudinal axis (L1) and offset therefrom, wherein the discharge device arm is configured to be pivotably movable in a controlled way, so that, in discharge operation, the solid material inlet opening is movable near the filter drum inner surface by means of a pivoting movement of the discharge device arm , in order to be able to receive the filtered-out solid material (F) adhering to the filter drum inner surface , and wherein the solid material discharge device further comprises at least one nozzle for applying a gas to the filtered-out solid material (F) during discharge operation, which is arranged adjacent to the solid material inlet opening in the solid material discharge line and which has a gas outlet opening , which is oriented in the direction of the filter drum inner surface during discharge operation, in order to be able to apply the gas to the filtered-out solid material (F) adhering to the filter drum inner surface during discharge operation, the filter centrifuge further comprising a pressure difference generating device for generating a pressure difference between an interior of the nozzle and the solid material inlet opening , such that the pressure in the nozzle is greater than at the solid material inlet opening , and for creating a pressure difference between the solid material inlet opening and an interior of the solid material discharge line , such that the pressure in the solid material discharge line is lower than in an external environment surrounding the solid material inlet opening , wherein the pressure difference generating device is arranged such that said pressure differences are set by it in the discharge operation in such a way that the volume flow in the gas outlet opening is smaller than the volume flow in the solid material inlet opening , characterized in that the solid material inlet opening extends in the direction of the filter drum longitudinal axis (L1) over less than one fifth of the entire length of the filter drum inner surface , wherein the discharge device arm is further configured for translational movement in a controlled way, so that in discharge operation the solid material inlet opening is movable by means of a translational movement of the discharge device arm in a direction parallel to the filter drum longitudinal axis (L1), to displace the solid material inlet opening parallel to the filter drum longitudinal axis (L1). <EOS>