Derby Coroners' Court heard that Colin Webster worked at the National Coal Board from the age of 18, but left to become a forklift driver in the 1960s.
Mr Webster spent 12 years working at the Coppice Colliery, in Shipley, the inquest heard.
It was there that he was in "daily contact with asbestos" - making checks on pipes lagged with asbestos in the boiler house.
In 2008 Mr Webster developed a cough, and was then diagnosed with malignant mesothelioma, a cancer caused by exposure to asbestos.
He died on November 1 - his 75th birthday - at the Royal Derby Hospital.
Recording a verdict of death from industrial disease, Coroner Dr Robert Hunter said: "I'm satisfied there was asbestos exposure during his employment and that led to the development of malignant mesothelioma."
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