FIG. 1 is a perspective view of a multi-purpose scoop; FIG. 2 is a right elevation view thereof (with the left a mirror image thereof); FIG. 3 is a top view thereof; FIG. 4 is a bottom view thereof; FIG. 5 is a front elevation view thereof; and, FIG. 6 is a rear elevation view thereof. The broken lines represents structure which form no part of the claimed design.