Dust removal device of dry-mixed mortar production system

The invention discloses a dust removal device of a dry-mixed mortar production system, which is characterized by comprising a dust removal box, two partition plates are arranged in the dust removal box and divide the interior of the dust removal box into a dust removal cavity, a drying cavity and a cleaning cavity, a plurality of filter plates are arranged in the dust removal cavity, and the left end and the right end of the dust removal cavity are respectively connected with a dust suction pipe and an exhaust pipe. A negative pressure fan is arranged at the lower part of the dust suction pipe; the left side and the right side of the drying cavity are connected with an air inlet pipe and an air outlet pipe correspondingly, an exhaust fan is arranged on the air inlet pipe, and a notch is formed in the position, below the filter plate, of the partition plate. According to the invention, the filter plate can be directly cleaned in the dust removal box, and the machine does not need to be stopped for maintenance.