Combined type coal water slurry nozzle provided with ignition device

The utility model relates to a combined type coal water slurry nozzle provided with an ignition device. The combined type coal water slurry nozzle provided with the ignition device comprises an outer sprayer, a middle sprayer, an inner sprayer and a central pipe which are coaxially arranged, wherein an ignition cable is arranged on the outer wall of the central pipe, a hydrocyclone which can form rotary jet flow is arranged at the front end of the central pipe, an axial through hole is formed in the hydrocyclone, certain shrinkage is formed at the front end, opposite to the front end of the through hole of the hydrocyclone, of the central pipe, and part of or all the circumferential edge of the hydrocyclone is contacted with the inner cavity wall of the front end of the inner sprayer; and certain indentation is formed on the front end face, relative to the datum plane of the end face of the inner sprayer, of the hydrocyclone, so that a premixing cavity B is formed. Functions of an ignition nozzle and a technological nozzle in the gasifying furnace are combined, so that the ignition nozzle and the technological nozzle do not need to be repeatedly switched in the whole gasifying process, operation difficulty of a gasifying process is reduced, current required by ignition is small, combustible effect on coal water slurry is improved, ignition success rate is high, and stable flame is generated.