Device for the batchwise dedusting of a granulate , with a conveying flow generator arranged upstream of the dedusting container in the form of an ejector compressed air nozzle with a compressed air connection and a dedusting container , which comprises - at least one granulate inlet opening for the granulate , - a granulate outlet opening in the lower part of the dedusting container , in particular in its base, - an air outlet opening which is arranged in particular in the upper part of the dedusting container , - an ioniser , - a whirling unit for whirling the granulate in the dedusting container , - a controller which is able to control the whirling unit and all moving parts, in particular valves, of the device, - wherein an intermediate container is arranged below the granulate outlet opening of the dedusting container , into which the granulate can fall through the granulate outlet opening , and a level sensor connected to the controller via electrical lines is arranged in the intermediate container , - wherein the peripheral walls surrounding the dedusting container consist of an electrically non-conductive material, in particular glass, at least on the inner surfaces facing the interior, characterised in that - the closure-less granulate outlet opening is permanently open, - the whirling unit has upwardly directed whirling nozzles which are connected to a compressed air connection in the lower part of the dedusting container , in particular in the granulate outlet opening , - whereby, when the filling level in the intermediate container measured by the filling level sensor rises to the level of the granulate outlet opening of the dedusting container , the controller initiates batchwise dedusting. - at least one granulate inlet opening for the granulate , - a granulate outlet opening in the lower part of the dedusting container , in particular in its base, - an air outlet opening which is arranged in particular in the upper part of the dedusting container , - an ioniser , - a whirling unit for whirling the granulate in the dedusting container , - a controller which is able to control the whirling unit and all moving parts, in particular valves, of the device, - wherein an intermediate container is arranged below the granulate outlet opening of the dedusting container , into which the granulate can fall through the granulate outlet opening , and a level sensor connected to the controller via electrical lines is arranged in the intermediate container , - wherein the peripheral walls surrounding the dedusting container consist of an electrically non-conductive material, in particular glass, at least on the inner surfaces facing the interior, characterised in that - the closure-less granulate outlet opening is permanently open, - the whirling unit has upwardly directed whirling nozzles which are connected to a compressed air connection in the lower part of the dedusting container , in particular in the granulate outlet opening , - whereby, when the filling level in the intermediate container measured by the filling level sensor rises to the level of the granulate outlet opening of the dedusting container , the controller initiates batchwise dedusting. <EOS>