High-pressure water jet single-slit coupling rock breaking heading machine

The utility model discloses a high-pressure water jet single-slit coupling rock breaking heading machine which comprises a cutterhead, and a hob is installed on the first side face of the cutterhead.The moving track of the spraying device coincides with the moving track of the hob; and the high-pressure liquid generating device is communicated with the spraying device. The spraying device and thehigh-pressure liquid generating device are additionally arranged, the moving track of the spraying device coincides with the moving track of the hob, and the high-pressure liquid generating device iscommunicated with the spraying device and provides high-pressure liquid for the spraying device. During working, the high-pressure liquid generating device is started; high-pressure liquid firstly cuts and spatters tunnel face rock through the spraying device; the tunnel face rock generates micro cracks or existing cracks to be further expanded, then the hobbing cutters located on the same trackfurther extrude and shear th