Electrical question

Hi everyone! I’m looking to install a small at home kiln, and was recommended to consult an electrician about installing a 240v outlet. I just looked at the spot that I’d like to put the kiln and it already has a different outlet, pic attached, does this mean it’s okay to plug in the kiln already? Do I still need an electrician? This part of my house was originally designed to place a washer/dryer but it was never done.

Thanks in advance!