The 23-year-old has previously played for Southend United, Torquay United and Dover Athletic.
Darts manager Tony Burman said: “I am delighted that Duane has finally come on board. He is a big target man and something different to our other strikers.
“I think he will complement the squad and give another dimension to our game. At 23 years of age he has had experience at Southend, Torquay and Dover and I am sure he has the hunger to get back to the top of non-League football”.