Abstract: Justification and the analysis of aerodynamic processes’ features in a refrigerator mine. Movement of air dust mixture in the refrigerator of the rotating furnace. Definition of the valid picture of a field and use of mathematical planning of experiments. Way of dust removal from under consolidation. Conditions carrying out experiments for clarification of the valid reasons of carrying out of dust. Dust content on the hot end of the furnace. Design of the dustproof device with injector way of elimination of settling dust. Principle of the dustproof device operation. Jet device (injector) for removal of dust from the sealing device in refrigerator mine. The analysis of operation of the jet device for dust removal. Consolidation with an injector. Optimum conditions for return of dust-air weight from under consolidation back in the refrigerator. General efficiency of this device increases.