Mark Evans said the 'Skyfall' singer cut him out of her life in 2011 after he gave an interview about the Oscar nominee, reported Daily Mail.
Evans said not only has he not met her boyfriend Simon Konecki, he hasn't met Adele's three-month-old son.
"I've left messages on her phone, I've written to her and I've sent her birthday and Christmas cards but it's like I'm dead to her," he said.
"I'm not interested in her celebrity status or her money. I just want my daughter back and I want to be a proper granddad to the little one."
The British star is fiercely private and hasn't revealed her baby son's name, although rumour has it the little boy is called Angelo James.
Adele's 49-year-old father claimed he too found out his grandchild's name through the press.
The family rift happened after the interview Evans gave in 2011 as his 24-year-old daughter stood in the brink of global stardom.
In it he took full responsibility for his failings as a father