Hello and welcome,
The easiest way of transport from Malaga airport to Torredelmar is by car or Malaga airport transfers
. Have you considered it?
There is no direct bus to Torredelmar from the airport, you may have to take a bus or a train from Malaga airport to Malaga Muelle Heredia, next to the port (the last stop) and from there take another bus to Torredelmar.