Efficient crushing system for vertical mill

The utility model discloses an efficient crushing system for a vertical mill. The efficient crushing system for the vertical mill comprises a vertical roller mill, a mill feeding lifting machine, a cyclone dust collector and a bag type dust collector, wherein the mill feeding lifting machine is used for feeding raw mineral aggregates into the vertical roller mill; the cyclone dust collector is communicated with the near end of an air outlet of the vertical roller mill; the bag type dust collector is communicated with a remote end of an air outlet of the vertical roller mill and is connected with a tail exhaust fan which is used for exhausting the air; the bottom part of the vertical roller mill is connected with a hot-blast stove which is used for supplying hot air; a circulating fan is arranged between the cyclone dust collector and the vertical roller mill and is used for returning the airflow from the cyclone dust collector to the vertical roller mill; in production, part of the air is pumped by the tail exhaust fan, thus high negative pressure can be always kept in the mill; and the pumped air is subjected to dust collection by a pulse dust collector and then is exhausted, so that the pollution is reduced, the working condition is improved, and the working efficiency of the system is increased by about 10%.