FIG. 1 is a perspective view of of the portable dryer as seen from the top, front and left sides, wherein the broken linework is for environmental purposes only and does not form a part of the claimed design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a reduced perspective view similar to FIG. 1 showing additional environmental linework; and,

FIG. 8 is a reduced perspective view similar to FIG. 1 showing additional environmental linework.

The broken line showing of portions of a portable dryer is included for the purpose of illustrating environmental structure and forms no part of the claimed design.