Insert multiple column from one table into two coloums in another table

i have a tablename called emp

EmpID	Amount	Empid1	Amount1 	Empid2	Amount2	Empid3	Amount3
  1	    2000	   2	  2000	       3	2000	   4	2000
  1	    1500	   2	  1500	       3	1500	   4	3500
  1	    1000	   2	  1000	       3	1000	   4	1000

need to insert this table into another table named salary, which has only two columns insert multiple rows into two rows result shoul be like this

      EmpID	     Amount
        1	     2000
        1	     1500
        1	     1000
        2	     2000
        2	     1500
        2	     1000
       3	     1000
       3	     1500
       3	     2000
       4	     1000
       4	     3500
       4	     2000