1) Yes, UK passports are accepted in the EU/EEA queues throughout the EU/EEA, at least until Brexit actually happens (if, when, how, . . . ☺)
2) No, your non-EU wife has to go through the (usually slower) non-EU queue, and meet you at the other side.
Your check will be quick, as you have a right to enter the EU, they only check the passport is valid (not fake, out-of-date), and that you look like your photo. Her checks may be more (how long are you staying? Do you have enough money?).
It's just my personal opinion, I have no experience of this, but it might help if she has a copy of your passport on her. It would explain why she is alone.
BTW, at least until brexit, you can move to any EU country to live and work, and she can accompany you. You would have to do some bureaucratic paperwork though.