  We establish an explicit algebra isomorphism between the affine
Yokonuma-Hecke algebra $\widehat{Y}_{r,n}(q)$ and a direct sum of matrix
algebras with coefficients in tensor products of affine Hecke algebras of type
$A.$ As an application of this result, we show that $\widehat{Y}_{r,n}(q)$ is
affine cellular in the sense of Koenig and Xi, and further prove that it has
finite global dimension when the parameter $q$ is not a root of the Poincar\'e
polynomial. As another application, we also recover the modular representation
theory of $\widehat{Y}_{r,n}(q)$ previously obtained in [CW].
