FIG. 1 is a right-side elevational view of the steam-cleaning appliance showing my new design;

FIG. 2 is a left-side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 ia a bottom plan view thereof.