The utility model provides a drilling dust pelletizing system and mine drilling system. Wherein, the drilling dust pelletizing system sets up the housing in the drilling rod and wall body contact department of waiting to drill, is formed with the export on the lateral part of housing, and the one end of the section of thick bamboo of discharging is fixed around the export to making the passing away intercommunication that holds chamber and the section of thick bamboo of discharging in the housing, making the dust that produces from the drilling can concentrate on in the housing and discharge via the section of thick bamboo of discharging, the liquid spray who is produced by the liquid jet device in discharge process simultaneously drenches. In addition, the drilling dust pelletizing systemstill includes secondary dust collector, and secondary dust collector can inhale the dust of not detaching in a housing and a discharge section of thick bamboo to it detaches it to spray liquid spray. The utility model provides a drilling dust pelletizing system and mine drilling system can make the dust can drenched and detach by liquid spray in diffusion process to reduce and spread the dust quantity in the air, improved the dust collection efficiency, reduced the dust pollution degree of mine drilling system.