The ornamental design of a pursedustcover, as shown and described.
FIG. 1 is a back perspective view depicting a purse dust cover showing my new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a back elevational view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a top plan view thereof.
The broken lines showing the word “LOGO” are for the purposes of illustrating environment and form no part of the claimed design. The smaller broken lines represent stitching and form no part of the claimed design.