Dust removal method of working face coal dust in tunneling coal cutting of roadway unit and dust removal chamber

The invention relates to the coal mine ventilation and safety field, particularly to a dust removal technology of underground coal mines. A dust removal method of working face coal dust in tunneling coal cutting of a roadway unit includes that a first dust capture screen (1) which covers a whole section of a tunnel is installed at a position which is 50 to 120 m far away from a tunneling working face of the tunnel; a second dust capture screen (2) which covers the whole section of the tunnel is installed at a position which is 4 to 6 m far away from the first dust capture screen (1) along a return current direction of the tunnel; the filtering apertures of the first dust capture screen (1) and the second dust capture screen (2) are 2 mm and the first dust capture screen (1) and the second dust capture screen (2) are respectively provided with rolling shutters which are used for passing through; tunnel plates which are arranged in the front of the first dust capture screen (1) and the second dust capture scree