A quick’n’dirty1 way for transfering MongoDB collection from Linux to Windows, using plink as the ssh client.
plink -load null username@remotehost ^ mongoexport --db mydb --collection mycollection | ^ mongoimport --db mydb --collection mycollection
If you have setup the key based authentication for SSH and are using pageant to manage the key locally, this does not prompt for password.
-load null forces plink to ignore the hostname defined in in your default PuTTY session profile.
 dirty because mongoexport does not transfer all datatypes, in order to really transfer everything you should create the export with mongodump.