Use a multi-field where the name and description use your Danish analyzer. Then have a field like name.en and description.en use an English analyzer.
http://www.elasticsearch.org/guide/reference/mapping/multi-field-type/
Question
Got 2 fields (name & description), using a Danish analyzer. Now I need to support it with an English analyser too.
What is my solutions?
Solution
Use a multi-field where the name and description use your Danish analyzer. Then have a field like name.en and description.en use an English analyzer.
http://www.elasticsearch.org/guide/reference/mapping/multi-field-type/