The presenter claimed on Twitter that the show was being axed for financial reasons, before posting a YouTube clip of Zane Lowe's 'diving' BBC Radio 1 TV promo.
"So. Just been told the BBC London Show - the Treehouse - is to be shut down after all. Saves BBC money apparently," Baker said.
"Also. I am being 'inducted' into The Radio Hall Of Fame next week. Big honour. BBC salutes by cutting five sixths of my shows.#IronyNotLost
"BBC asked me not to say anything just yet about axing best show on British Radio. Why? Because it's embarrassing? Because they'll look bad?"
He posted a photograph of several awards he has won for his DJing and added: "Hey BBC Middle management! Seriously. I'll be fine. Don't feel bad! I can sell these."
Baker then retweeted support from celebrities, including Stephen Fry, Ross Noble and Rob Brydon.
Copyright: PA Images PA ArchiveFry said: "Next week @prodnose is inducted into Radio Academy Hall of fame. Not surprising, he's the best. Today the BBC are axing his show. Dickwits."
Noble added: "How can the BBC axe our greatest radio talent @prodnose show.after recent events they should be celebrating what they do well."
Brydon quipped: "Glad that BBC are axing @prodnose Danny Baker's daily radio show. I've had it up to here with his wit, warmth and originality. "
Baker continued: "By the way - BBC London and I are NOT "in discussion" about a new weekly show. In fact, I haven't heard a single word from them at all.
"Deep thanks to everyone who has responded about the radio. We dwell amid pinheaded weasels who know only timid, the generic and the abacus."
Baker was last year given the all-clear after successful treatment for throat cancer.
In 2011, he hit out at the BBC Delivering Quality First cuts programme after his live afternoon show on BBC London was first threatened with the axe.
At that time he also posted the video of Lowe's Radio 1 promo.
Watch the Zane Lowe Radio 1 advert below: