A modification of the structure of the dust collector has been made through partitioning of its chamber into separate dedusting channels to which a number of cyclones was assigned. Using the model of the dust collector a preliminary selection of the heights h1, h2, .... hi, at the intake was made of the individual channels of the dust collector sections to ensure identical flow resistance of the airstream through these channels. The model investigations of the sections of the dust collector were verified in flow investigations. The values of the stream was measured extracted from individual cyclones for several variants of the dust collector. An assessment of the improvement of the dedusting efficiency from individual cyclones has been performed.