It won't last forever, and is one of the funniest things your child can do right now. This is something she is able to accomplish at her current level of motor ability, and it must be wildly satisfying – a whole drawer of clothes!!! It is developmentally appropriate for her age. I would be inclined to allow this, or even encourage it! (But not TOO much encouragement, or you'll strip part of the pleasure out of it for her – this is something SHE is able to accomplish by herself, and is an early attempt to dress herself.)
My grandson, when somewhat younger, did this off and on over maybe four months. My daughter just smiled and let him do it when she saw how dedicated he was to both the dumping out and putting on, and we have a video we all love to watch, with him wiggling into his mommy's silky things. In fact, I'm gonna go watch that now.
This is a developmentally appropriate activity for her age, helping her build motor skills large and small, and kids love interacting with "big people" things – so much more enticing than baby toys. Is it too disruptive for you to allow this, or even encourage it? You could move your unmentionables to a higher location for the next month or two, and let her have silky scarves, ruffled blouses, and textured hats for her joy?
At some point, you can also encourage her, playfully, to put everything back. If you're willing to make the consistent effort, you can always direct her to "her" one drawer if you wish, but I guarantee this will reduce the pleasure she gets from this harmless activity. And be sure to take some pictures.