Should someone 80 pounds overweight bother building muscle through weight-lifting? Is it even possible?

I’ve been losing weight by watching what I eat and walking on the treadmill. Should I even bother with adding weight-lifting to my workout plan or should I wait until you can actually see muscle after I lose a lot of weight-because right now, I’m just fat? Sorry, I know nothing about the muscle/lean muscle thing. Thanks.

Do weights, the muscle will help you to burn fat.

Lego Sport Champions: Weight Lifting