By　combining　the　effects　of　bounded　cylindrical　geometry,　azimuthal　and　axial　perturbations,　the　nonlinear　dust　acoustic　waves　(DAWs)　in　an　unmagnetized　plasma　consisting　of　negatively　charged　dust　grains,　nonextensive　ions,　and　nonextensive　electrons　are　studied　in　this　paper.　Using　the　reductive　perturbation　method,　a　(3　+　1)-dimensional　variable-coefficient　cylindrical　Korteweg-de　Vries　(KdV)　equation　describing　the　nonlinear　propagation　of　DAWs　is　derived.　Via　the　homogeneous　balance　principle,　improved　F-expansion　technique　and　symbolic　computation,　the　exact　traveling　and　solitary　wave　solutions　of　the　KdV　equation　are　presented　in　terms　of　Jacobi　elliptic　functions.　Moreover,　the　effects　of　the　plasma　parameters　on　the　solitary　wave　structures　are　discussed　in　detail.　The　obtained　results　could　help　in　providing　a　good　fit　between　theoretical　analysis　and　real　applications　in　space　physics　and　future　laboratory　plasma　experiments　where　long-range　interactions　are　present.　(C)　2012　American　Institute　of　Physics.　[http://dx.doi.org/10.1063/1.4729682]