Dust suppression device of discharge system of medium-speed coal mill

The invention discloses a dust suppression device of a discharge system of a medium-speed coal mill. The dust suppression device comprises a filter unit, the filter unit comprises an input pipe, a draft fan, a filter bin, a replacement bin arranged in the middle of the filter bin and an output pipe, the draft fan is arranged in the input pipe, the input pipe is connected with the replacement bin, and the output pipe is connected with the replacement bin; a replacement unit; the replacement unit comprises an electromagnet, a connecting piece, a matching block, a filter plate and a clamping block, one end of the connecting piece is connected with the electromagnet, the other end of the connecting piece is connected with the filter plate, the matching block is arranged in the connecting piece, the replacement unit is embedded into the replacement bin, and the clamping block is arranged on the connecting piece. And the on-site working environment is greatly improved. 本发明公开了一种中速磨煤机排放系统的抑尘装置，其包括过滤单元；所述过滤单元包括输入管、抽风扇