Improved slag extractor for thermal power plant

The utility model provides an improved slag extractor for a thermal power plant. The slag crusher comprises a longitudinal supporting frame, antiskid supporting legs, a transverse fixing rod, a slag crusher body, an anti-splashing protective cover structure, a waste slag filtering and separating frame structure, a material guiding hopper, an adjustable supporting movable frame structure, a material guiding pipe, an adjusting valve, a storage hopper, a replaceable filtering net frame structure, movable bottom wheels, a discharging pipe and a discharging valve, and the longitudinal supporting frame is installed at the four corners of the lower portion of the slag crusher body through bolts; and the anti-skid support legs are glued at the lower end of the longitudinal support frame. The steelwire rope is embedded into the inner side of the splash guard, so that materials discharged outwards from the slag crusher can be prevented from playing a role in protecting when the slag crusher isused, and the slag crusher