The ornamental design for a portion of a laundryappliance, as shown and described.
FIG. 1 is a front perspective view of a portion of a laundry appliance showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a top view thereof.
The broken line showing of various regions, including the unshaded areas therein, is for illustrative purposes and forms no part of the claimed design. The unshown bottom of the portion of a laundry appliance forms no part of the claimed design.