Steamworld Dig stuck in Vectron

I'm playing Steamworld Dig on PC. I've dropped down from the Old World into what I think is Vectron. I'm in a big room with four tall pillars in it. My drill and pickaxe don't seem to work on any of the metal blocks. I don't have a teleporter to get back to the surface. How do I get out of this room?

Solution 1:

There should be a block on the left pillar you can dig through.

Dig through the pillar, then head down and enter the door to your right to reach a new area. Dig through the blocks on your right, and there will be a steam pipe you can use to travel back to the surface.